Some GUI alignment/sizing improvements.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@14828 3db68df2-c116-0410-a063-a993310a9797
fix AI error

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@14829 3db68df2-c116-0410-a063-a993310a9797
Added ptolemaic quinquereme. Fixes #2232

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@14830 3db68df2-c116-0410-a063-a993310a9797
Merge 'remotes/trunk'