shit
Collection class now has an improved interface. Removed a lot of stuff that doesn't really belong to it
Made it compile successfully
Added methods for getting a level by using an ID (also allows iteration over all levels in a collection)
Base class TileManipulator written
Added function bodies to tile manipulator listener class
Restructured directory layout, updated premake script to support googlemock threading
Moving templated class implementations to hxx files...
Wrote tests for GraphNode
Wrote tests for graph