Give the minimap 20px more on eack side and remove the ugly overlay. Also cleanup some nearby code.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@14580 3db68df2-c116-0410-a063-a993310a9797
Make sure units in INDIVIDUAL state don't belong to a formation. Should fix #2380

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@14581 3db68df2-c116-0410-a063-a993310a9797
Merge 'remotes/trunk'