Added a GUI for the Tutor system. This one script acts as a psuedo-FSM and manages switching between different Windows.
Added a DebugMode flag to GameState so that through the debugKey we can toggle debug mode and allow the ManaSystem to work smoothly even if we haven't created a Player object.
Updated PromptGUI to look much nicer.
Fixed up PromptGUI to be written much better (and not so confusing). Fixed bug where a notification event signature was wrong.
Updated ManaSystem so that it does not complain if player has not been created.
Removed a Crosshair script from Mana prefab. Created a KeepMeAlive script which ensures the GameObject is not destroyed between levels.
Updated Tutor to make it so that the intro text will show until a player moves.
Fixed up Tutor so that a player can now fully learn about mana and the lift skill.
Refactored PauseController and began implementing the Relaxation Tutorial.