support and Bug 241646 Shift+Mousewheel (scrollwheel) behavior backwards, unintuitive not correctable with configuration patch by sand@blarg.net r=bryner sr=roc a=asa on both. git-svn-id: svn://10.0.0.236/branches/MOZILLA_1_7_BRANCH@155877 18797224-902f-48f8-a5cc-f745e15eee43