Zebu model

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13219 3db68df2-c116-0410-a063-a993310a9797
helmet variations and tweak to ballista template

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13220 3db68df2-c116-0410-a063-a993310a9797
Add technology support for ranged unit spread


git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13221 3db68df2-c116-0410-a063-a993310a9797
Bolt shooter accuracy tech

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13222 3db68df2-c116-0410-a063-a993310a9797
Only use interpolation for moving objects in VisualActor.  Patch by sbte.  Fixes #1846.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13223 3db68df2-c116-0410-a063-a993310a9797
Tech icons

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13224 3db68df2-c116-0410-a063-a993310a9797
Merge remote-tracking branch 'remotes/trunk'