Implemented Ship class, started TDD of Enemy class
Implemented Spawner class along with Test Cases. Updated Enemy class to work with Spawner.
Added more Enemy test cases.
deleted unneeded files
Did some code cleanup -- player/enemy now use Entity members for sprites/textures
Collision, Sound, Music

Added better player image movement
Added shooting to mac
Linux Update

Converted to Linux, Makefile now supports “make all”
Added Jordan's Menu functionality. Start menu and Pause screen included.
Implemented Kevin's UI for the menu, and added early implementation of ship types.