replace xwt base with gtk
* Small fix to be able to use XNA XNBs without having to "manually edit" them as stated in http://chainedchaos31.tumblr.com/post/97557910457/playing-audio-on-the-playstation-vita-via-monogame
* Applied fixes described in http://community.monogame.net/t/spritebatch-cs-effect-cs-this-does-not-appear-to-be-a-monogame-mgfx-file/1070/2
updated most of the projectview stuff
forgot some files
reworked Effect.cs commit
Expose AsserUri for Android Songs
Merge pull request #3283 from KakCAT/psmobile_small_fixes_take3

Psmobile small fixes
Merge pull request #3289 from SongArc/feature/android_song

Expose AsserUri for Android Songs
everything working except property grid
hopefully fixed mac error, wrote MAC instead of MONOMAC
Fixed Icon
Added Property Grid Support
Fixed up ProtoBuild projects
Updated Depedencies
Fixed Build Errors
Fixes Linux References
Merge pull request #3296 from cra0zy/develop

Gtk Pipeline for Linux
Updated Dependencies
Handle iOS audio interruption