Modified speed value to make slower speeds faster, and some of the extremely fast speeds slower
Made map panning faster
Merge branch 'bajuwaCameraMods' into develop
Introduced concept of marking tiles as occupied as units move away/towards them.  Modified pathfinding to avoid these occupied tiles
Merge branch 'bajuwaOccupiedTiles' into develop
Encapsulated the current and target tiles
Pathfinding guards against no valid paths
Calculates new path when hitting an obstacle
Merge remote-tracking branch 'origin/develop' into geoff