Adds actor seed support to scenario XML data, optionally used in place of entity ID.
Fixes Atlas previews not matching placed entity.
Fixes in-game building previews not matching final entity (except walls).

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13144 3db68df2-c116-0410-a063-a993310a9797
Automated build.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13145 3db68df2-c116-0410-a063-a993310a9797
Re: disable foam and coastal waves in Atlas until properly optimized (this time with 100% more it-does-not-bug). Refs #1743
(sorry about the last time, should not blindly commit).

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13146 3db68df2-c116-0410-a063-a993310a9797
Fixing the weird line bug in gulf variation of unknown maps.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@13147 3db68df2-c116-0410-a063-a993310a9797
Merge remote-tracking branch 'remotes/trunk'