BackButton support for WP8
Added fake GamePad class
Implemented Game.Exit()
Merge branch 'orientation' of https://github.com/Nezz/MonoGame into wp8_backbutton_v2
Get BackPressed from page
Merge branch 'orientation' of https://github.com/Nezz/MonoGame into wp8_backbutton_V2
Updated template
Merge branch 'orientation' of https://github.com/Nezz/MonoGame into wp8_backbutton_V2
Merge branch 'orientation' of https://github.com/Nezz/MonoGame into wp8_backbutton_V2
ModelMeshPart.Effect now removes the old effect from the ModelMesh if no one else is using it.
Fixed mouse scroll wheel on WinDX desktop.
FindImporterByExtension() is no longer case sensitive.
Merge branch 'develop3d' of https://github.com/mono/MonoGame into wp8_backbutton_V2
Fix to the ray-AABB intersection to resolve cases where hitting an edge would return false negatives
Fixed case where a disposed texture is still in the TextureCollection.
XAudio2 creation can fail.
Fix for the case where the ray points away from the AABB
Mouse Cursor not hidden in XAML based apps.

In xaml, mouse must be actively turn off during initialization.
Seting Game.IsMouseVisible =false; has no effect because the code check
against current value, which is by default false;
Now, In order to hide the mouse cursor one must do
IsMouseVisible = true;
IsMouseVisible = false;

Another thing: The execution path through
MetroGamePlatform.RunLoop()
MetroGameWindow.RunLoop()
which call SetCursor(false), doesn't seem to be active anymore.
uncomment code
All the current tests pass now!
Merge pull request #1478 from nkast/nkastBranch

Mouse Cursor not hidden in XAML based apps.
Merge pull request #1473 from renaudbedard/aabb-ray-intersect-fix

Fix to the ray-AABB intersection to resolve cases where hitting an edge ...