fixed Fullscreen not working; Next time please watch what you delete...

in this case the deleted "ifdef" was !WINRT so by removing it,
fullscreen broke on all platforms other than winrt ;)
Merge pull request #159 from Maximilian-Reuter/monogame-sdl2

fixed Fullscreen not working; Next time please watch what you delete...
Merge pull request #160 from khbecker/monogame-sdl2

"ASCII text" file format and line endings for Graphics/Vertices.
Was this file used... ever?
"ASCII text" file format and line endings for Input and Input/Touch.