diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 480db4f2ce..8225b80897 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -8420,6 +8420,8 @@ timers			Compiled with |timer_start()| support.
 title			Compiled with window title support |'title'|.
 toolbar			Compiled with support for |gui-toolbar|.
 transparency            Compiled with 'transparency' support.
+ttyin			input is a terminal (tty)
+ttyout			output is a terminal (tty)
 unix			Unix version of Vim.
 user_commands		User-defined commands.
 vertsplit		Compiled with vertically split windows |:vsplit|.
diff --git a/runtime/doc/starting.txt b/runtime/doc/starting.txt
index a0d580bc4f..ad4cd3cb28 100644
--- a/runtime/doc/starting.txt
+++ b/runtime/doc/starting.txt
@@ -421,6 +421,10 @@ a slash.  Thus "-R" means recovery and "-/R" readonly.
 		not connected to a terminal.  This will avoid the warning and
 		the two second delay that would happen. {not in Vi}
 
+							*--ttyfail*
+--ttyfail	When the stdin or stdout is not a terminal (tty) then exit
+		right away.
+
 							*-d*
 -d		Start in diff mode, like |vimdiff|.
 		{not in Vi} {not available when compiled without the |+diff|
diff --git a/src/channel.c b/src/channel.c
index 263f6ac6ec..faeee25486 100644
--- a/src/channel.c
+++ b/src/channel.c
@@ -3840,6 +3840,11 @@ channel_parse_messages(void)
     int		ret = FALSE;
     int		r;
     ch_part_T	part = PART_SOCK;
+#ifdef ELAPSED_FUNC
+    ELAPSED_TYPE  start_tv;
+
+    ELAPSED_INIT(start_tv);
+#endif
 
     ++safe_to_invoke_callback;
 
@@ -3884,7 +3889,14 @@ channel_parse_messages(void)
 	    r = may_invoke_callback(channel, part);
 	    if (r == OK)
 		ret = TRUE;
-	    if (channel_unref(channel) || r == OK)
+	    if (channel_unref(channel) || (r == OK
+#ifdef ELAPSED_FUNC
+			/* Limit the time we loop here to 100 msec, otherwise
+			 * Vim becomes unresponsive when the callback takes
+			 * more than a bit of time. */
+			&& ELAPSED_FUNC(start_tv) < 100L
+#endif
+			))
 	    {
 		/* channel was freed or something was done, start over */
 		channel = first_channel;
@@ -3912,6 +3924,31 @@ channel_parse_messages(void)
     return ret;
 }
 
+/*
+ * Return TRUE if any channel has readahead.  That means we should not block on
+ * waiting for input.
+ */
+    int
+channel_any_readahead(void)
+{
+    channel_T	*channel = first_channel;
+    ch_part_T	part = PART_SOCK;
+
+    while (channel != NULL)
+    {
+	if (channel_has_readahead(channel, part))
+	    return TRUE;
+	if (part < PART_ERR)
+	    ++part;
+	else
+	{
+	    channel = channel->ch_next;
+	    part = PART_SOCK;
+	}
+    }
+    return FALSE;
+}
+
 /*
  * Mark references to lists used in channels.
  */
diff --git a/src/evalfunc.c b/src/evalfunc.c
index f5b1eeb68b..0e51b1f4ca 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -5978,6 +5978,10 @@ f_has(typval_T *argvars, typval_T *rettv)
 	}
 	else if (STRICMP(name, "vim_starting") == 0)
 	    n = (starting != 0);
+	else if (STRICMP(name, "ttyin") == 0)
+	    n = mch_input_isatty();
+	else if (STRICMP(name, "ttyout") == 0)
+	    n = stdout_isatty;
 #ifdef FEAT_MBYTE
 	else if (STRICMP(name, "multi_byte_encoding") == 0)
 	    n = has_mbyte;
diff --git a/src/globals.h b/src/globals.h
index ec5174d0f8..da5ec5da92 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -643,6 +643,8 @@ EXTERN int	exiting INIT(= FALSE);
 EXTERN int	really_exiting INIT(= FALSE);
 				/* TRUE when we are sure to exit, e.g., after
 				 * a deadly signal */
+EXTERN int	stdout_isatty INIT(= TRUE);	/* is stdout a terminal? */
+
 #if defined(FEAT_AUTOCHDIR)
 EXTERN int	test_autochdir INIT(= FALSE);
 #endif
diff --git a/src/gui_gtk_x11.c b/src/gui_gtk_x11.c
index 5020177d95..514ac9e31a 100644
--- a/src/gui_gtk_x11.c
+++ b/src/gui_gtk_x11.c
@@ -3102,7 +3102,7 @@ drawarea_configure_event_cb(GtkWidget	      *widget,
     g_return_val_if_fail(event
 	    && event->width >= 1 && event->height >= 1, TRUE);
 
-# if GTK_CHECK_VERSION(3,22,2)
+# if GTK_CHECK_VERSION(3,22,2) && !GTK_CHECK_VERSION(3,22,4)
     /* As of 3.22.2, GdkWindows have started distributing configure events to
      * their "native" children (https://git.gnome.org/browse/gtk+/commit/?h=gtk-3-22&id=12579fe71b3b8f79eb9c1b80e429443bcc437dd0).
      *
@@ -3123,6 +3123,10 @@ drawarea_configure_event_cb(GtkWidget	      *widget,
      * implementation details.  Therefore, watch out any relevant internal
      * changes happening in GTK in the feature (sigh).
      */
+    /* Follow-up
+     * After a few weeks later, the GdkWindow change mentioned above was
+     * reverted (https://git.gnome.org/browse/gtk+/commit/?h=gtk-3-22&id=f70039cb9603a02d2369fec4038abf40a1711155).
+     * The corresponding official release is 3.22.4. */
     if (event->send_event == FALSE)
 	return TRUE;
 # endif
@@ -4492,7 +4496,7 @@ form_configure_event(GtkWidget *widget UNUSED,
 {
     int usable_height = event->height;
 
-#if GTK_CHECK_VERSION(3,22,2)
+#if GTK_CHECK_VERSION(3,22,2) && !GTK_CHECK_VERSION(3,22,4)
     /* As of 3.22.2, GdkWindows have started distributing configure events to
      * their "native" children (https://git.gnome.org/browse/gtk+/commit/?h=gtk-3-22&id=12579fe71b3b8f79eb9c1b80e429443bcc437dd0).
      *
@@ -4508,6 +4512,10 @@ form_configure_event(GtkWidget *widget UNUSED,
      * To filter out such fallacious events, check if the given event is the
      * one that was sent out to the right place. Ignore it if not.
      */
+    /* Follow-up
+     * After a few weeks later, the GdkWindow change mentioned above was
+     * reverted (https://git.gnome.org/browse/gtk+/commit/?h=gtk-3-22&id=f70039cb9603a02d2369fec4038abf40a1711155).
+     * The corresponding official release is 3.22.4. */
     if (event->window != gtk_widget_get_window(gui.formwin))
 	return TRUE;
 #endif
diff --git a/src/main.c b/src/main.c
index 98db9d565a..c06059b910 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1036,7 +1036,7 @@ common_init(mparm_T *paramp)
      * (needed for :! to * work). mch_check_win() will also handle the -d or
      * -dev argument.
      */
-    paramp->stdout_isatty = (mch_check_win(paramp->argc, paramp->argv) != FAIL);
+    stdout_isatty = (mch_check_win(paramp->argc, paramp->argv) != FAIL);
     TIME_MSG("window checked");
 
     /*
@@ -1906,6 +1906,7 @@ command_line_scan(mparm_T *parmp)
 				/* "--literal" take files literally */
 				/* "--nofork" don't fork */
 				/* "--not-a-term" don't warn for not a term */
+				/* "--ttyfail" exit if not a term */
 				/* "--noplugin[s]" skip plugins */
 				/* "--cmd <cmd>" execute cmd before vimrc */
 		if (STRICMP(argv[0] + argv_idx, "help") == 0)
@@ -1935,6 +1936,8 @@ command_line_scan(mparm_T *parmp)
 		    p_lpl = FALSE;
 		else if (STRNICMP(argv[0] + argv_idx, "not-a-term", 10) == 0)
 		    parmp->not_a_term = TRUE;
+		else if (STRNICMP(argv[0] + argv_idx, "ttyfail", 7) == 0)
+		    parmp->tty_fail = TRUE;
 		else if (STRNICMP(argv[0] + argv_idx, "cmd", 3) == 0)
 		{
 		    want_argument = TRUE;
@@ -2573,7 +2576,7 @@ check_tty(mparm_T *parmp)
 	if (!input_isatty)
 	    silent_mode = TRUE;
     }
-    else if (parmp->want_full_screen && (!parmp->stdout_isatty || !input_isatty)
+    else if (parmp->want_full_screen && (!stdout_isatty || !input_isatty)
 #ifdef FEAT_GUI
 	    /* don't want the delay when started from the desktop */
 	    && !gui.starting
@@ -2588,7 +2591,7 @@ check_tty(mparm_T *parmp)
 	 * input buffer so fast I can't even kill the process in under 2
 	 * minutes (and it beeps continuously the whole time :-)
 	 */
-	if (netbeans_active() && (!parmp->stdout_isatty || !input_isatty))
+	if (netbeans_active() && (!stdout_isatty || !input_isatty))
 	{
 	    mch_errmsg(_("Vim: Error: Failure to start gvim from NetBeans\n"));
 	    exit(1);
@@ -2601,11 +2604,13 @@ check_tty(mparm_T *parmp)
 	    exit(1);
 	}
 #endif
-	if (!parmp->stdout_isatty)
+	if (!stdout_isatty)
 	    mch_errmsg(_("Vim: Warning: Output is not to a terminal\n"));
 	if (!input_isatty)
 	    mch_errmsg(_("Vim: Warning: Input is not from a terminal\n"));
 	out_flush();
+	if (parmp->tty_fail && (!stdout_isatty || !input_isatty))
+	    exit(1);
 	if (scriptin[0] == NULL)
 	    ui_delay(2000L, TRUE);
 	TIME_MSG("Warning delay");
@@ -3371,6 +3376,7 @@ usage(void)
 #endif
     main_msg(_("-T <terminal>\tSet terminal type to <terminal>"));
     main_msg(_("--not-a-term\t\tSkip warning for input/output not being a terminal"));
+    main_msg(_("--ttyfail\t\tExit if input or output is not a terminal"));
     main_msg(_("-u <vimrc>\t\tUse <vimrc> instead of any .vimrc"));
 #ifdef FEAT_GUI
     main_msg(_("-U <gvimrc>\t\tUse <gvimrc> instead of any .gvimrc"));
diff --git a/src/misc2.c b/src/misc2.c
index abd1178721..a123a09f7f 100644
--- a/src/misc2.c
+++ b/src/misc2.c
@@ -6269,3 +6269,31 @@ parse_queued_messages(void)
 # endif
 }
 #endif
+
+#ifdef ELAPSED_TIMEVAL  /* no PROTO here, proto is defined in vim.h */
+/*
+ * Return time in msec since "start_tv".
+ */
+    long
+elapsed(struct timeval *start_tv)
+{
+    struct timeval  now_tv;
+
+    gettimeofday(&now_tv, NULL);
+    return (now_tv.tv_sec - start_tv->tv_sec) * 1000L
+	 + (now_tv.tv_usec - start_tv->tv_usec) / 1000L;
+}
+#endif
+
+#ifdef ELAPSED_TICKCOUNT
+/*
+ * Return time in msec since "start_tick".
+ */
+    long
+elapsed(DWORD start_tick)
+{
+    DWORD	now = GetTickCount();
+
+    return (long)now - (long)start_tick;
+}
+#endif
diff --git a/src/option.c b/src/option.c
index e156852a3b..6d6748e5ee 100644
--- a/src/option.c
+++ b/src/option.c
@@ -458,10 +458,11 @@ struct vimoption
 #define P_NFNAME       0x400000L /* only normal file name chars allowed */
 #define P_INSECURE     0x800000L /* option was set from a modeline */
 #define P_PRI_MKRC    0x1000000L /* priority for :mkvimrc (setting option has
-				   side effects) */
+				    side effects) */
 #define P_NO_ML       0x2000000L /* not allowed in modeline */
 #define P_CURSWANT    0x4000000L /* update curswant required; not needed when
 				  * there is a redraw flag */
+#define P_NDNAME      0x8000000L /* only normal dir name chars allowed */
 
 #define ISK_LATIN1  (char_u *)"@,48-57,_,192-255"
 
@@ -1004,7 +1005,7 @@ static struct vimoption options[] =
 			    (char_u *)NULL, PV_NONE,
 #endif
 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
-    {"dictionary",  "dict", P_STRING|P_EXPAND|P_VI_DEF|P_ONECOMMA|P_NODUP,
+    {"dictionary",  "dict", P_STRING|P_EXPAND|P_VI_DEF|P_ONECOMMA|P_NODUP|P_NDNAME,
 #ifdef FEAT_INS_EXPAND
 			    (char_u *)&p_dict, PV_DICT,
 #else
@@ -2111,7 +2112,7 @@ static struct vimoption options[] =
 			    {(char_u *)NULL, (char_u *)0L}
 #endif
 			    SCRIPTID_INIT},
-    {"printexpr", "pexpr",  P_STRING|P_VI_DEF,
+    {"printexpr", "pexpr",  P_STRING|P_VI_DEF|P_SECURE,
 #ifdef FEAT_POSTSCRIPT
 			    (char_u *)&p_pexpr, PV_NONE,
 			    {(char_u *)"", (char_u *)0L}
@@ -2712,7 +2713,7 @@ static struct vimoption options[] =
     {"textwidth",   "tw",   P_NUM|P_VI_DEF|P_VIM|P_RBUF,
 			    (char_u *)&p_tw, PV_TW,
 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
-    {"thesaurus",   "tsr",  P_STRING|P_EXPAND|P_VI_DEF|P_ONECOMMA|P_NODUP,
+    {"thesaurus",   "tsr",  P_STRING|P_EXPAND|P_VI_DEF|P_ONECOMMA|P_NODUP|P_NDNAME,
 #ifdef FEAT_INS_EXPAND
 			    (char_u *)&p_tsr, PV_TSR,
 #else
@@ -5961,11 +5962,13 @@ did_set_string_option(
 	errmsg = e_secure;
     }
 
-    /* Check for a "normal" file name in some options.  Disallow a path
-     * separator (slash and/or backslash), wildcards and characters that are
-     * often illegal in a file name. */
-    else if ((options[opt_idx].flags & P_NFNAME)
-			 && vim_strpbrk(*varp, (char_u *)"/\\*?[|<>") != NULL)
+    /* Check for a "normal" directory or file name in some options.  Disallow a
+     * path separator (slash and/or backslash), wildcards and characters that
+     * are often illegal in a file name. */
+    else if (((options[opt_idx].flags & P_NFNAME)
+		    && vim_strpbrk(*varp, (char_u *)"/\\*?[|;&<>\r\n") != NULL)
+	  || ((options[opt_idx].flags & P_NDNAME)
+		    && vim_strpbrk(*varp, (char_u *)"*?[|;&<>\r\n") != NULL))
     {
 	errmsg = e_invarg;
     }
@@ -7111,6 +7114,7 @@ did_set_string_option(
 
 
 #if defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_W32)
+    /* 'toolbar' */
     else if (varp == &p_toolbar)
     {
 	if (opt_strings_flags(p_toolbar, p_toolbar_values,
@@ -7335,6 +7339,7 @@ did_set_string_option(
 #endif
 
 #if defined(FEAT_RENDER_OPTIONS)
+    /* 'renderoptions' */
     else if (varp == &p_rop && gui.in_use)
     {
 	if (!gui_mch_set_rendering_options(p_rop))
@@ -7362,19 +7367,19 @@ did_set_string_option(
     else
     {
 	p = NULL;
-	if (varp == &p_ww)
+	if (varp == &p_ww) /* 'whichwrap' */
 	    p = (char_u *)WW_ALL;
-	if (varp == &p_shm)
+	if (varp == &p_shm) /* 'shortmess' */
 	    p = (char_u *)SHM_ALL;
-	else if (varp == &(p_cpo))
+	else if (varp == &(p_cpo)) /* 'cpoptions' */
 	    p = (char_u *)CPO_ALL;
-	else if (varp == &(curbuf->b_p_fo))
+	else if (varp == &(curbuf->b_p_fo)) /* 'formatoptions' */
 	    p = (char_u *)FO_ALL;
 #ifdef FEAT_CONCEAL
-	else if (varp == &curwin->w_p_cocu)
+	else if (varp == &curwin->w_p_cocu) /* 'concealcursor' */
 	    p = (char_u *)COCU_ALL;
 #endif
-	else if (varp == &p_mouse)
+	else if (varp == &p_mouse) /* 'mouse' */
 	{
 #ifdef FEAT_MOUSE
 	    p = (char_u *)MOUSE_ALL;
@@ -7384,7 +7389,7 @@ did_set_string_option(
 #endif
 	}
 #if defined(FEAT_GUI)
-	else if (varp == &p_go)
+	else if (varp == &p_go) /* 'guioptions' */
 	    p = (char_u *)GO_ALL;
 #endif
 	if (p != NULL)
diff --git a/src/os_unix.c b/src/os_unix.c
index 41581bb1e6..6fe927b8fe 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -376,21 +376,6 @@ mch_write(char_u *s, int len)
 	RealWaitForChar(read_cmd_fd, p_wd, NULL, NULL);
 }
 
-#if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H)
-/*
- * Return time in msec since "start_tv".
- */
-    static long
-elapsed(struct timeval *start_tv)
-{
-    struct timeval  now_tv;
-
-    gettimeofday(&now_tv, NULL);
-    return (now_tv.tv_sec - start_tv->tv_sec) * 1000L
-	 + (now_tv.tv_usec - start_tv->tv_usec) / 1000L;
-}
-#endif
-
 /*
  * mch_inchar(): low level input function.
  * Get a characters from the keyboard.
@@ -411,10 +396,10 @@ mch_inchar(
     int		did_start_blocking = FALSE;
     long	wait_time;
     long	elapsed_time = 0;
-#if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H)
-    struct timeval  start_tv;
+#ifdef ELAPSED_FUNC
+    ELAPSED_TYPE start_tv;
 
-    gettimeofday(&start_tv, NULL);
+    ELAPSED_INIT(start_tv);
 #endif
 
     /* repeat until we got a character or waited long enough */
@@ -438,8 +423,8 @@ mch_inchar(
 	    else
 		/* going to block after p_ut */
 		wait_time = p_ut;
-#if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H)
-	    elapsed_time = elapsed(&start_tv);
+#ifdef ELAPSED_FUNC
+	    elapsed_time = ELAPSED_FUNC(start_tv);
 #endif
 	    wait_time -= elapsed_time;
 	    if (wait_time < 0)
@@ -477,6 +462,10 @@ mch_inchar(
 	/* Checking if a job ended requires polling.  Do this every 100 msec. */
 	if (has_pending_job() && (wait_time < 0 || wait_time > 100L))
 	    wait_time = 100L;
+	/* If there is readahead then parse_queued_messages() timed out and we
+	 * should call it again soon. */
+	if ((wait_time < 0 || wait_time > 100L) && channel_any_readahead())
+	    wait_time = 10L;
 #endif
 
 	/*
@@ -1554,18 +1543,16 @@ mch_input_isatty(void)
 
 #ifdef FEAT_X11
 
-# if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H) \
+# if defined(ELAPSED_TIMEVAL) \
 	&& (defined(FEAT_XCLIPBOARD) || defined(FEAT_TITLE))
 
-static void xopen_message(struct timeval *start_tv);
-
 /*
  * Give a message about the elapsed time for opening the X window.
  */
     static void
-xopen_message(struct timeval *start_tv)
+xopen_message(long elapsed_msec)
 {
-    smsg((char_u *)_("Opening the X display took %ld msec"), elapsed(start_tv));
+    smsg((char_u *)_("Opening the X display took %ld msec"), elapsed_msec);
 }
 # endif
 #endif
@@ -1864,11 +1851,11 @@ get_x11_windis(void)
 #endif
 	if (x11_display != NULL)
 	{
-# if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H)
+# ifdef ELAPSED_FUNC
 	    if (p_verbose > 0)
 	    {
 		verbose_enter();
-		xopen_message(&start_tv);
+		xopen_message(ELAPSED_FUNC(start_tv));
 		verbose_leave();
 	    }
 # endif
@@ -4648,8 +4635,8 @@ mch_call_shell(
 		    ga_init2(&ga, 1, BUFLEN);
 
 		noread_cnt = 0;
-# if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H)
-		gettimeofday(&start_tv, NULL);
+# ifdef ELAPSED_FUNC
+		ELAPSED_INIT(start_tv);
 # endif
 		for (;;)
 		{
@@ -4684,8 +4671,8 @@ mch_call_shell(
 			  /* Get extra characters when we don't have any.
 			   * Reset the counter and timer. */
 			  noread_cnt = 0;
-# if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H)
-			  gettimeofday(&start_tv, NULL);
+# ifdef ELAPSED_FUNC
+			  ELAPSED_INIT(start_tv);
 # endif
 			  len = ui_inchar(ta_buf, BUFLEN, 10L, 0);
 		      }
@@ -4908,10 +4895,10 @@ mch_call_shell(
 			if (got_int)
 			    break;
 
-# if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H)
+# ifdef ELAPSED_FUNC
 			if (wait_pid == 0)
 			{
-			    long	    msec = elapsed(&start_tv);
+			    long	msec = ELAPSED_FUNC(start_tv);
 
 			    /* Avoid that we keep looping here without
 			     * checking for a CTRL-C for a long time.  Don't
@@ -5654,15 +5641,14 @@ RealWaitForChar(int fd, long msec, int *check_for_gpm UNUSED, int *interrupted)
     /* May retry getting characters after an event was handled. */
 # define MAY_LOOP
 
-# if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H)
+# ifdef ELAPSED_FUNC
     /* Remember at what time we started, so that we know how much longer we
      * should wait after being interrupted. */
-#  define USE_START_TV
     long	    start_msec = msec;
-    struct timeval  start_tv;
+    ELAPSED_TYPE  start_tv;
 
     if (msec > 0)
-	gettimeofday(&start_tv, NULL);
+	ELAPSED_INIT(start_tv);
 # endif
 
     /* Handle being called recursively.  This may happen for the session
@@ -5969,9 +5955,9 @@ select_eintr:
 	/* We're going to loop around again, find out for how long */
 	if (msec > 0)
 	{
-# ifdef USE_START_TV
+# ifdef ELAPSED_FUNC
 	    /* Compute remaining wait time. */
-	    msec = start_msec - elapsed(&start_tv);
+	    msec = start_msec - ELAPSED_FUNC(start_tv);
 # else
 	    /* Guess we got interrupted halfway. */
 	    msec = msec / 2;
@@ -7068,11 +7054,11 @@ setup_term_clip(void)
 #if defined(HAVE_SETJMP_H)
 	int (*oldIOhandler)();
 #endif
-# if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H)
-	struct timeval  start_tv;
+# ifdef ELAPSED_FUNC
+	ELAPSED_TYPE  start_tv;
 
 	if (p_verbose > 0)
-	    gettimeofday(&start_tv, NULL);
+	    ELAPSED_INIT(start_tv);
 # endif
 
 	/* Ignore X errors while opening the display */
@@ -7114,11 +7100,11 @@ setup_term_clip(void)
 	/* Catch terminating error of the X server connection. */
 	(void)XSetIOErrorHandler(x_IOerror_handler);
 
-# if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H)
+# ifdef ELAPSED_FUNC
 	if (p_verbose > 0)
 	{
 	    verbose_enter();
-	    xopen_message(&start_tv);
+	    xopen_message(ELAPSED_FUNC(start_tv));
 	    verbose_leave();
 	}
 # endif
diff --git a/src/os_win32.c b/src/os_win32.c
index 34b2ca8384..e08adcbb19 100644
--- a/src/os_win32.c
+++ b/src/os_win32.c
@@ -1351,9 +1351,15 @@ WaitForChar(long msec)
 	    DWORD dwWaitTime = dwEndTime - dwNow;
 
 #ifdef FEAT_JOB_CHANNEL
-	    /* Check channel while waiting input. */
+	    /* Check channel while waiting for input. */
 	    if (dwWaitTime > 100)
+	    {
 		dwWaitTime = 100;
+		/* If there is readahead then parse_queued_messages() timed out
+		 * and we should call it again soon. */
+		if (channel_any_readahead())
+		    dwWaitTime = 10;
+	    }
 #endif
 #ifdef FEAT_MZSCHEME
 	    if (mzthreads_allowed() && p_mzq > 0
@@ -4287,9 +4293,6 @@ mch_system_piped(char *cmd, int options)
 		    /* Get extra characters when we don't have any.  Reset the
 		     * counter and timer. */
 		    noread_cnt = 0;
-# if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H)
-		    gettimeofday(&start_tv, NULL);
-# endif
 		    len = ui_inchar(ta_buf, BUFLEN, 10L, 0);
 		}
 		if (ta_len > 0 || len > 0)
diff --git a/src/popupmnu.c b/src/popupmnu.c
index 19d215b9f5..307dbbedc6 100644
--- a/src/popupmnu.c
+++ b/src/popupmnu.c
@@ -105,7 +105,8 @@ redo:
 
     /* Put the pum below "row" if possible.  If there are few lines decide on
      * where there is more room. */
-    if (row - above_row >= below_row - row)
+    if (row + 2 >= below_row - pum_height
+			    && row - above_row > (below_row - above_row) / 2)
     {
 	/* pum above "row" */
 
diff --git a/src/proto/channel.pro b/src/proto/channel.pro
index 2ff8908339..afbc8488a5 100644
--- a/src/proto/channel.pro
+++ b/src/proto/channel.pro
@@ -44,6 +44,7 @@ int channel_poll_check(int ret_in, void *fds_in);
 int channel_select_setup(int maxfd_in, void *rfds_in, void *wfds_in);
 int channel_select_check(int ret_in, void *rfds_in, void *wfds_in);
 int channel_parse_messages(void);
+int channel_any_readahead(void);
 int set_ref_in_channel(int copyID);
 ch_part_T channel_part_send(channel_T *channel);
 ch_part_T channel_part_read(channel_T *channel);
diff --git a/src/structs.h b/src/structs.h
index ec3f18f9fa..8311216a69 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -3244,8 +3244,8 @@ typedef struct
 #endif
 
     int		want_full_screen;
-    int		stdout_isatty;		/* is stdout a terminal? */
     int		not_a_term;		/* no warning for missing term? */
+    int		tty_fail;		/* exit if not a tty */
     char_u	*term;			/* specified terminal name */
 #ifdef FEAT_CRYPT
     int		ask_for_key;		/* -x argument */
diff --git a/src/testdir/test_options.vim b/src/testdir/test_options.vim
index 3b6f6625f6..6dfb1bbe60 100644
--- a/src/testdir/test_options.vim
+++ b/src/testdir/test_options.vim
@@ -106,3 +106,26 @@ func Test_keymap_valid()
   call assert_fails(":set kmp=trunc\x00name", "E544:")
   call assert_fails(":set kmp=trunc\x00name", "trunc")
 endfunc
+
+func Check_dir_option(name)
+  " Check that it's possible to set the option.
+  exe 'set ' . a:name . '=/usr/share/dict/words'
+  call assert_equal('/usr/share/dict/words', eval('&' . a:name))
+  exe 'set ' . a:name . '=/usr/share/dict/words,/and/there'
+  call assert_equal('/usr/share/dict/words,/and/there', eval('&' . a:name))
+  exe 'set ' . a:name . '=/usr/share/dict\ words'
+  call assert_equal('/usr/share/dict words', eval('&' . a:name))
+
+  " Check rejecting weird characters.
+  call assert_fails("set " . a:name . "=/not&there", "E474:")
+  call assert_fails("set " . a:name . "=/not>there", "E474:")
+  call assert_fails("set " . a:name . "=/not.*there", "E474:")
+endfunc
+
+func Test_dictionary()
+  call Check_dir_option('dictionary')
+endfunc
+
+func Test_thesaurus()
+  call Check_dir_option('thesaurus')
+endfunc
diff --git a/src/version.c b/src/version.c
index f53c361cd7..3094a06dde 100644
--- a/src/version.c
+++ b/src/version.c
@@ -779,6 +779,26 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    104,
+/**/
+    103,
+/**/
+    102,
+/**/
+    101,
+/**/
+    100,
+/**/
+    99,
+/**/
+    98,
+/**/
+    97,
+/**/
+    96,
+/**/
+    95,
 /**/
     94,
 /**/
diff --git a/src/vim.h b/src/vim.h
index 99962885e8..3a432cb7b8 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -2506,4 +2506,20 @@ typedef enum
 # define OPEN_CHR_FILES
 #endif
 
+#if defined(HAVE_GETTIMEOFDAY) && defined(HAVE_SYS_TIME_H)
+# define ELAPSED_TIMEVAL
+# define ELAPSED_INIT(v) gettimeofday(&v, NULL)
+# define ELAPSED_FUNC(v) elapsed(&v)
+# define ELAPSED_TYPE struct timeval
+    long elapsed(struct timeval *start_tv);
+#else
+# if defined(WIN32)
+#  define ELAPSED_TICKCOUNT
+#  define ELAPSED_INIT(v) v = GetTickCount()
+#  define ELAPSED_FUNC(v) elapsed(v)
+#  define ELAPSED_TYPE DWORD
+    long elapsed(DWORD start_tick);
+# endif
+#endif
+
 #endif /* VIM__H */