...
If you want SVN Support:
Select Collaboration => Subversive SVN Team Provider
If you want Git Support (and who doesn't):
Select Collaboration => Eclipse EGit
or
Select Eclipse Git Team Provier => Eclipse EGit
(also make sure you have git installed from http://http://git-scm.com/)
(also go to github and fork WOnder https://github.com/projectwonder/wonder
more information on getting WOnder source is at Getting the Wonder Source Code)
If you want JadClipse (to decompile class file):
Select Uncategorized => JadClipse Feature
(also install jad from http://www.varaneckas.com/jad into /usr/local/bin/jad)
...