MacGui: Removed the code to show/hide the fSrcAngle* UI elements in Controller.m, the same work is now done in the MainMenu.xib with bindings.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6321 b64f7644-9d1e-0410-96f1-a4d463321fa5
MacGui: Fixed a crash in HBFilters caused by a missing boxing of a bool.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6322 b64f7644-9d1e-0410-96f1-a4d463321fa5