WinGui:

WinGui:
- Removed update checker window
- Removed debug window (was never implemented)
- Update checking item in file menu now displays a pop-up message box instead.
- Update checker code changed so it is re-usable.
- Top half of the GUI design changed to closer match the MacGui:
- Chapter Selection boxes now change colour to light coral should the range be invalid. This replaces the text warning.

git-svn-id: svn://localhost/HandBrake/trunk@920 b64f7644-9d1e-0410-96f1-a4d463321fa5