WinGui: Switch to using hb_set_anamorphic_size2. This simplifies the picture settings code in the GUI and should hopefully fix a few bugs.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6348 b64f7644-9d1e-0410-96f1-a4d463321fa5
MacGui: removed the “Large file size” checkbox.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6349 b64f7644-9d1e-0410-96f1-a4d463321fa5
MacGui: replaced the last two NSBeginCriticalAlertSheet calls, and two NSEnumerators.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6350 b64f7644-9d1e-0410-96f1-a4d463321fa5
MacGui: fixed two small leaks.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6351 b64f7644-9d1e-0410-96f1-a4d463321fa5