Merge pull request #9 from dym99/master

added rubble image for tank death
Merge pull request #10 from dym99/master

Added health bar. Fixed bug where tank would keep moving while dead.
Merge pull request #11 from dym99/master

Tile-Based Map Editor and map loading function. New Grass and Sand Tiles...
Merge pull request #12 from dym99/master

Fixed grass tileset bug. TOTO: Collsions.
Merge pull request #13 from dym99/master

WATER
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added mine images