Fix a valgrind warning about uninitilized variables in the scrollbar code and some comment/style fixes.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@14764 3db68df2-c116-0410-a063-a993310a9797
Automated build.

git-svn-id: http://svn.wildfiregames.com/public/ps/trunk@14765 3db68df2-c116-0410-a063-a993310a9797
Merge 'remotes/trunk'