[release] Prepare XE 1.7 RC1 release.
[release] Prepare XE 1.7 RC1 release.

git-svn-id: d23d7a6431d93e1bdd218a46658458610974b053@14466 f329d543-caf0-0310-9063-dda96c69346f

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