GPII-523: Added missing model transformation for screenReaderTracking.
GPII-523: Updated contrast theme adjuster.
Specify model values as defined in https://docs.google.com/spreadsheet/ccc?key=0AppduB_JZh5EdGltZnF3dVpKdXcxSVhEZ0VjZGY1U3c&usp=drive_web#gid=0, line 23.
Do not allow inversion theme as it is not supported in common terms currently.
Leave a default theme selectable until http://issues.gpii.net/browse/GPII-566 is resolved.
Merge pull request #2 from chrispetsos/GPII-523

GPII-523: Updated contrast theme adjuster.
Merge pull request #17 from radmanovi4/frames-pilots-2

GPII-523: Provide model transformations from/to GPII/UIOptions preferences schema

Merging after justin and cindys review
GPII-566: Revived the contrastEnabled adjuster.
Removed the "default" contrast theme selection.
When contrast is disabled, set default theme programmatically.
Contrast theme panel is conditional to contrastEnabled.
GPII-523: Added model transformation for contrastEnabled.
GPII-573: Corrected the styling bug in ON/OFF switch
under Windows 7 and Mozilla Firefox
GPII-573: Fixed some styling issues with ON/OFF adjusters.
Merge pull request #21 from chrispetsos/GPII-566

GPII-566: Revived the contrastEnabled adjuster. - merging after review from Justin
Merge pull request #22 from chrispetsos/GPII-573

GPII-573: Corrected the styling bug in ON/OFF switch under Windows 7 and Mozilla Firefox. 

Thanks for reviewing this @jobara
Merge branch 'master' into GPII-568

Conflicts:
	src/shared/schemas/js/pcpSchema.js