MacGui: pass the fast decode option to the hb_job.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6668 b64f7644-9d1e-0410-96f1-a4d463321fa5
MacGui: use bindings to toggle the chapters/seconds/frames UI.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6669 b64f7644-9d1e-0410-96f1-a4d463321fa5