Implemented hintActivate method
Removed hint method (it's going to be implemented in controller)
Implemented checkIfGameWon
Corrected a bug that affected discover method with flags or 'not sures'
Removed problems
Hint added
Corrected the flag bug.
added debug message for game won
Changed debug info.
Updated debug info.
Started implementing MinesweeperObserver
Added unimplemented methods in MainController
EventHandler implemented
Merge remote-tracking branch 'origin/businesslogic' into ui
Worked on observer
Merge remote-tracking branch 'origin/ui' into businesslogic
Add Minsweeper observer
Merge remote-tracking branch 'origin/businesslogic' into ui
Changed observer to 'Object'
Merge remote-tracking branch 'origin/businesslogic' into ui