Merge branch 'release/v0.1' into develop
some test with resizable window
Revert "some test with resizable window"

This reverts commit 060ba8c17df3296560c21b7a13d94972522b727b.
made window not resizable
added json skin file
added assets for default skin
added a TextField to the Menu
tests with textfields
more tests
text field works bett with use of stage
text field disabled at game start
uncommented debug keys
generalized ending game and better text field
game now correctly reset on restart
text field works as expected now
better input selection
settings now has stage
TextFields in Settings now shown
in settings text fields modifieable
better clicking in settings and no longer right clickable elsewhere