Support for multi=line comments, detects file type.

* Added support for multi-line comments to the JLPPegParser grammar
  implementation.
* Added a Java sample file.
* Updated test script to add convenience functions for the java test file and
  for using a TracingParseRunner for parse runs.
* Added an option, `--css-file`, to allow the caller to specify their own css
  file.
* Added basic logic to the Processor class to detect source file types and build
  a parser and a generator for that source type. Support currently exists for
  the following languages: C (.c, .h), C++ (.cpp, .c++, .hpp, .h++), Erlang
  (.erl), Groovy (.groovy), Java (.java), JavaScript (.js).

resources/main/Test.java

@@ -0,0 +1,26 @@
+package test;
+
+import java.util.Array;
+
+/** This is a test class. Mainly for testing my parser.
+  * It should work. And now we are just filing space.
+  * @author Jonathan Bernard
+  * @copyright JDB Labs 2011 */
+public class Test {
+
+    /**
+      | @org test-ref
+      | This is an embedded comment.
+      | It spreads over at least 3 lines.
+      | And this is the third line.
+      */
+
+    public static void main(String[] args) {
+        /** Yes, this is a hello world example. */
+        System.out.println("Hello World!");
+    }
+
+    /// This is a single-line comment block. */ /** Other comment
+    /// modifiers should not matter within this block.
+    /// @org last-doc
+}