MacGUI: validate the toolbars items after a scan. This used to be done but got lost somewhere along the way.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@5877 b64f7644-9d1e-0410-96f1-a4d463321fa5
Fix a small leak in encca_aac.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@5878 b64f7644-9d1e-0410-96f1-a4d463321fa5