Protect against the exception if the content list doesn't exist.
Added /quiet switch to MGCB.
Added new target file for compiling a .contentproj in VS using MGCB.
Merge pull request #1664 from SickheadGames/mgcb

MGCB Support For Content Projects
Added support for all remaining SurfaceFormat values in OpenGL
HalfVector2, HalfVector4, Rg32, Rgba64, Rgba1010102, Vector2, Vector4, HdrBlendable, NormalizedByte2, NormalizedByte4.
Merge pull request #1686 from slygamer/surface-formats

Added support for all remaining SurfaceFormat values in OpenGL
Fix so that FullScreen works correctly on SoftKey Android devices. Should work with Gingerbread and above. Thanks Matthieu Laban (Infinite Flight) for pointing it out.
Merge pull request #1687 from CartBlanche/AndroidFullScreenFix

Fix so that FullScreen works correctly on SoftKey Android devices.
Merge branch 'develop' of https://github.com/mono/MonoGame into guideCancelKeyboardInput