Unreviewed. Added Anton Obzhirov to the list of contributors and myself
to the watchlist for Accessibility.

* Scripts/webkitpy/common/config/contributors.json: Added Anton Obzhirov.
* Scripts/webkitpy/common/config/watchlist: Added myself.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@149728 268f45cc-cd09-0410-ab3c-d52691b4dbfc