XWIKI-12: Create a Maven2 build
XWIKI-12: Create a Maven2 build

* Comment out GWT module build as it's currently not working

git-svn-id: d24132671420d6f5f4db809e884ce42b3489f6c5@2176 f329d543-caf0-0310-9063-dda96c69346f

xwiki/xwiki-platform,xwiki/xwiki-platform,pbondoer/xwiki-platform,pbondoer/xwiki-platform,xwiki/xwiki-platform,xwiki/xwiki-platform,pbondoer/xwiki-platform,pbondoer/xwiki-platform,pbondoer/xwiki-platform,xwiki/xwiki-platform