Disable automatic relaunching on OS X 10.7

src/MacVim/MMAppController.m

@@ -241,6 +241,11 @@ fsEventCallback(ConstFSEventStreamRef streamRef,
 {
     if (!(self = [super init])) return nil;
 
+#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7)
+    // Disable automatic relaunching
+    [NSApp disableRelaunchOnLogin];
+#endif
+
     vimControllers = [NSMutableArray new];
     cachedVimControllers = [NSMutableArray new];
     preloadPid = -1;