Added the ability to select and place multiple amounts of tiles.

Signed-off-by: interdpth <interdpth@gmail.com>
Double right click to reset tileset
Fixed issue when resizing out of bounds

Signed-off-by: interdpth <interdpth@gmail.com>
Did some cleanup.
Clean up and stuff.
Merge pull request #13 from interdpth/master

Multi-Tile selection