DebianWiki Java page

[Frank Lin PIAT]

Hello,

I have reworked the Java page on the wiki[1]. I especially wanted to have
a quick overview of the various implementations available in Debian.

Since I am not a Java expert, it would be nice if you could
review/complete that page.

I will probably do more cleanup later (pages JRE, JVM...), but that's it
for today.

Thanks,

Franklin

[1] http://wiki.debian.org/Java