MacGui: "Ritsuka Bar" toolbar initial implementation

MacGui: "Ritsuka Bar" toolbar initial implementation
- Thanks goes to Ritsuka!
- Moves the Start/Cancel, Pause/Resume, Presets Drawer and Activity Window (previously debug) controls into a nice toolbar at the top of the main window
- Resizes the height of the main window to allow for the progress bar at the bottom during encoding
- Small change in that now muxmkv.c is included in the xcode project under libhb resources. Instead of under the main project heading.

git-svn-id: svn://localhost/HandBrake/trunk@733 b64f7644-9d1e-0410-96f1-a4d463321fa5