Lowered image comparision tolerance slightly.
Using new technique for comparing frames which gives us much better matches.
Document Point.Zero property.
Document Point.ToString() method
Document Point() constructor.
Fix typo in previous commit.
Remove some #ifs
Removed SpriteFontDescription.CharacterRegions ( did not exist in xna ).
Added SpriteFontDescription.Characters
Removed SpriteFontDescription constructor taking a region list  ( did not exist in xna ).
Document Rectangle's public properties and fields, and remove some whitespace for consistency.
EffectParameter now shows its current value in the watch window.
Replacing string.Format calls with string.Concat
Some GraphicsAdapter cleanup.
Cleanup and documentation pass.
Added GraphicsAdapter.UseReferenceDevice.
Support GraphicsAdapter.UseReferenceDevice in DirectX desktop and WinStore.
Enabled GraphicsProfile.HiDef and GraphicsAdapter.UseReferenceDevice for all visual tests by default.
Removed now unnessasary GraphicsProfile.HiDef.
Fix to allow GraphicsProfile.HiDef when GraphicsAdapter.UseReferenceDevice is enabled.
Fixed test to have correct background color even in release builds.
Fixing typo