Add hyperlink functionality

[omadawn]

It's discussed in this thread
http://fifesoft.com/forum/viewtopic.php?f=10&t=330&p=727&hilit=tooltip#p727

Where he mentions having to add your own parser. Here are some samples he gives. The taskTag parser (TODO: and others) This I want anyway.
http://svn.fifesoft.com/viewvc-1.0.5/bin/cgi/viewvc.cgi/RSyntaxTextArea/trunk/src/org/fife/ui/rsyntaxtextarea/parser/TaskTagParser.java?revision=157&root=RSyntaxTextArea&view=markup

The spell checking parser
http://svn.fifesoft.com/svn/RSyntaxTextArea/SpellChecker/trunk/src/org/fife/ui/rsyntaxtextarea/spell/SpellingParser.java

[omadawn]

Because this didn't save and it went into the 'unsubmitted' tasks in Eclipse it ended up being a duplicate of issue #143 which ended up getting created in gitHub before this did. Closing this one.