Added tests for c++ source and header files and java files. (#107)

* Added tests for c++ source and header files and java files.

* Added VHDL to languages and tests

* Updated readme

Updated to reflect VHDL being added to languages

tests/data/java.java

@@ -0,0 +1,23 @@
+/* 23 lines 16 code 4 comments 3 blanks */
+
+/*
+ * Simple test class
+ */
+public class Test
+{
+    int j = 0; // Not counted
+    public static void main(String[] args)
+    {
+        Foo f = new Foo();
+        f.bar();
+        
+    }
+}
+
+class Foo
+{
+    public void bar()
+    {
+      System.out.println("FooBar"); //Not counted
+    }
+}