Upgraded persian houses and palace with normal and AO.
Upgraded persian textures (diffuse normal and spec) WIP

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@15872 3db68df2-c116-0410-a063-a993310a9797
Remove leftovers from bundled miniupnpc. Refs #2552.
Fix cleanup of SM24.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@15873 3db68df2-c116-0410-a063-a993310a9797
Change L10n code to use ps/Singleton, so that we can recreate it.
This allows for adding locales in mods.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@15874 3db68df2-c116-0410-a063-a993310a9797
Upgraded persian struct texture missing in previous commit.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@15875 3db68df2-c116-0410-a063-a993310a9797
Prevents gaul defense_tower_a from showing a unit when not garrisoned. Fixes #2876

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@15876 3db68df2-c116-0410-a063-a993310a9797
cleaning of the Petra configuration

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@15877 3db68df2-c116-0410-a063-a993310a9797
Merge 'remotes/trunk'