db-move: moved mesa from [testing] to [extra] (i686, x86_64)

git-svn-id: file:///srv/repos/svn-packages/svn@214387 eb2447ed-0c53-47e4-bac8-5bc4a241df78
start 3.15 cycle

git-svn-id: file:///srv/repos/svn-packages/svn@214388 eb2447ed-0c53-47e4-bac8-5bc4a241df78
fix config for i686 3.15

git-svn-id: file:///srv/repos/svn-packages/svn@214389 eb2447ed-0c53-47e4-bac8-5bc4a241df78