Merge with 8bb5e4082e4f486ef24c5c6ed0bc4c10c4ea0416
starting the branch
creating a menu for back button
starting to implement the stage menu
generating R.java problem
Buttons of dialog without onclick event
back button menu
StageDialog except Screenshot Button is working
Found bug at (Re)Start behaviour. Couldn't fix it yet
all buggy
Back Button functionality fixed
Screenshot functionality added
correcting some testcases
toStageButtonTest updated
restart button working
resume button testcases
Adapted test for screenshot functionality, doesn't work correct yet
screenshot test
stage dialog rename button
still screenshot testing