DialogManager is functioning properly;
Switches between portraits;
Can be activated by other GameObjects;
Dialog.txt is set up for anyone to add to (instruction included);
Currently each type of dialogue is rotated through a cycle of sayings;
TODO: create priority system for displaying dialog;
Giving directions with the mouse now only uses the left mouse button;
Created Ability class and Heal class;
Added TowerTargeter (like ClickBox);
Upgraded MouseManager logic to handle towers that target other towers;
Implemented forced movement

Click on their current rally point and all squads will ignore enemies
until their destination is reached.
Merged branch james_dev and dev
Renamed ProgressBar to Progressbar

Unity and git are having issues remembering the correct capitalization.