XWIKI-1393: SVN reorganization to take into account the different XWiki products

* Reverting version numbers as before as I'd like to try releasing all the Tools in the same release and thus with the same version. That menas also creating a single JIRA project which makes it easier to handle.

git-svn-id: https://svn.xwiki.org/svnroot/xwiki/xwiki-platform/xwiki-tools/trunk@3814 f329d543-caf0-0310-9063-dda96c69346f