Fixed texture memory leak when reloading textures after app resume on Android.
Add missing Vector3 normal array transform
Implement MeshHelper.TransformScene, fixes #2546
Delegating to existing method
Back to inlining, matches rest of file better

This reverts commit 858ee5e362b54e6fe3b216b643e8afd792de9eae.
Fixed exception: No constructor found for MonoGameAndroidGameView::.ctor(System.IntPtr, Android.Runtime.JniHandleOwnership). Caused by virtual member call in constructor.
Removed unnecessary _activity member from OrientationListener. Fixes possible leak of Activity instance.
Merge pull request #2630 from SickheadGames/ModelPipeline

Implemented MeshHelper.TransformScene
Merge pull request #2633 from Andreyul/no_ctor_found

Fixed exception: No constructor found for MonoGameAndroidGameView
Added ContentSerializerRuntimeTypeAttribute and ContentSerializerTypeVersionAttribute.
Cleanup to make fields more apparent.
Added ContentSerializerRuntimeTypeAttribute and ContentSerializerTypeVersionAttribute support to ReflectiveWriter.
Made helper function static.
Fixed misplaced if.
Removed tabs.
Merge pull request #2634 from SickheadGames/runtype

Added Missing ContentSerializer Attributes
Removed TextureContent._bitmap.
It was only used in two locations:
1. Resizing a texture (for the resize-pow-two condition in TextureProcessor). It allocates a bitmap and then disposes it when done with this operation.
2. Font processor works with bitmaps, but rather than assuming there is one on the texturecontent up front, it just creates one.

This means that everyone else in the pipeline can rely on TextureContent.GetData/SetData always being what you expect it to be instead of being mysteriously out of sync with a _bitmap that your custom processor doesn't know about or have access to.
Allow loading textures directly from system images (UIImage, NSImage) on iOS and Mac, avoiding having to turn the image to stream and then read it from stream
Update Threading from Cocos2DXNA to ensure correct WP8 FromStream behaviour
Tidied up threading for WP