Add a really simple first map model for pathfinding.
Refactor a lot to allow unit test.
Add basic unit test.
Add at method in Grid class to avoid const and non const operator() ambiguity.
Fix dependancy management in .pro file.
Path finding is working on a simple exemple.
Delete node after pathfinding.
Stop using unsined int as tile_index type.
Manage wall in path finding.
Fix a bug in PathFindingMap generation.
Use a symetric hash and equal function to avoid a double check in the wall set.
Only allocate memory in A* when candidate is validated.
Add GraphicPathFindingMap class.
His purpose is to draw PathFindingMap graph to debug purpose.
Rename bin directory in game.
Use DESTDIR to avoid ambiguity between OS.
Put GraphicPathFinding in lib instead of test.
Use subdir in test to allow multiple test.
Merge branch 'unittest'

Conflicts:
	7dRTS.pro