Added Game Over menu
Fixed build tower buttons after new game
Replaced forach loop with iterator in WaveHandler
Quickfix to previous commit
Merge branch 'Oskar'
Added game over controller and listener
Merge

emote-tracking branch 'origin/master'

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Created a Game Over method
Merge branch 'master' into Oskar
Implemented GameOver alerts
Implemented Game Over logic
Merge branch 'master' into Oskar
Game Over
fixed test for focus closest way, added meetings folder
merge
extracted code to extract tiles from thre map to a new class, fixed some yellow triangles