WinGui:

WinGui:
- Tested and fixed a few issues with the appcast updater.
- Fixed a small issue where dropdowns wouldn't have a default value on startup if presets.dat was missing and user defaults was turned off.
- Disabled loose anamorphic for ffmpeg and xvid encodes.
- Added a useful error message to the presets bar when presets.dat is missing.

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@1203 b64f7644-9d1e-0410-96f1-a4d463321fa5