Java implementation of Markdown

[Pete Bevin]

I have a working Java version of Markdown, complete with Dingus
rip-off: <http://markdownj.petebevin.com/>

Source code is at <http://markdownj.petebevin.com/MarkdownJ.zip>

Notes:
* I used my own test cases instead of MarkdownTest (because I haven't
been following the mailing list very closely).
* The implementation is basically a translation of the Perl version.
* John Gruber is a freaking genius.  The regular expressions are very
well crafted, and I know I haven't done them justice.
* Usage is:

    MarkdownProcessor mp = new MarkdownProcessor();
    String html = mp.markdown("*italic*   **bold**\n_italic_   __bold__");

* Feel free to hack on the code.  Some of it is still pretty ugly.

Pete.