Fixing loading of Pipeline templates to using the WorkingDirectory when it differs from the CurrentDirectory.
Fixing it to not necessarily throw an exception when an invalid template file is read.
Propagating a fullscreen flag
Fixing for arrow keys being detected as Shift on certain keyboards
Adding necessary dependencies to Yeti music libs
Content Pipeline Tool: adding the ability to add all the files in a folder
Merge branch 'develop' of https://github.com/DissidentDan/MonoGame into develop

Conflicts:
	MonoGame.Framework/Windows/WinFormsGameWindow.cs
	Tools/Pipeline/Common/PipelineController.cs
	Tools/Pipeline/Windows/MainView.cs
Merge branch 'develop' of https://github.com/DissidentDan/MonoGame into develop