enabled antialiasing rendering
antialiasing also in 2D view
Merge branch 'master' of https://github.com/MrSchneepflug/java.drawing into MrSchneepflug-master

Conflicts:
	src/map_drawing/DisplayGrid.java
test
minor changes in MainClass
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/map_drawing/TwoDTile.java
	src/map_making/MainClass.java