Added a Linux solution for MonoDevelop plugin and fixed build error on ContentPipeline project.
Added all libs needed to build the plugin
Merge remote-tracking branch 'MonoGame/develop' into develop
Fixed addin file to load linux libs
Removed MonoDevelop dependencies
Updated submodules
Fixed AudioContent and updated Win and Mac projects for loading linux deps too
Uninstaller fix.
Minor refactoring to Matrix:

- Added forwards to methods where identical code was copy-pasted
- Removed unnecessary f's
Reverted changes that forwarded methods with ref parameters.
Fixed Windows and Mac projects
Merge remote-tracking branch 'MonoGame/develop' into develop
Fixed bug caused by failed revert.
Merge pull request #2067 from l3m/minor-matrix-refac

Minor refactoring to Matrix:
Merge pull request #2066 from Shqrdx/TemplateFix2

Uninstaller fix.
Fixed bad name for libpvrtc in the addin file7
Merge remote-tracking branch 'MG/develop' into develop
Merge pull request #2061 from demonixis/develop

Linux support for MonoDevelop plugin
Merge remote-tracking branch 'upstream/develop' into tnc_SwapChainBackgroundPanel