Beta: Override Special:Contributions and Special:RecentChanges with mobile equivalents

Obviously more work is needed on both of these views before pushing to
stable but at least they render much more nicely in the mobile skin.

Change-Id: Ia00fc297e9687ad8c08c17ad1a0f4df1832f1125
Merge "Beta: Override Special:Contributions and Special:RecentChanges with mobile equivalents"