Remove Alige as artist from some files which he didn't contribute to in the version used by tmw.
Added me as author of cave and collision tilesets

Also attributed cave.png to Modanung and Georg since as far as I
remember they also did parts of that tileset (like the water and the
carpet). I only drew the walls and arches.
Added V0id for weapon-bansheebow.png and arrowh-banshee.png
Merge pull request #15 from bjorn/master

Some license.txt updates
013-1: fixed bug reported by BigCrunch

moved and removed tiles which were overwritten by tiles in upper layers.
008-1: Collision fixes

removed Collision:
	* 35,36
	* 137 / 138 ,84
	* 75 / 76, 100
	* 47, 84
010-1: added collision at 24,99.
034-2:

* fixed 20 tile borderzone.
* moved 76,20 from Over to Ground3.
* removed all tiles from Ground2 which were already in Ground.
* exported tilesets. map is now using <tileset>.tsx.
* moved 24, 23 / 24 from Ground2 to Ground.
* edited Authors; tux9th is not an author of this map.
015-1:

	* moved x1 tiles from Fringe to Ground2.
	* ran tools/minimap-render.py 015-1
021-1/2:

021-1:
	* Moved all x1 tiles from Fringe to Ground2.
	* Renamed Ground1 to Ground.
	* Fixed Houses which were in Ground2 and belonged to Ground.
	* Fixed collision at the small pond at 105,140.
	* Added Plant at 123,23 and fixed collision around it.
	* Moved tiles at 107,48 into the correct layer.
	* Fixed warps into the new forge, renamed the warps to the old forge.
	* Edited all warps to have a "To <South Tulimshar>" instead of "to".
	* Added collision tiles to where Hetchel sits.

021-2:
Cleaned up the mess in the new forge:
	* Cleaned up numerous layers, removing tiles which were overwritten by other tiles, moving them into the correct layer, replacing tiles with their newer x2 version.
	* Fixed collision at:
		- Chairs
		- Shelves
	* Fixed warps out to 021-2.
	* Edited all warps to have a "To <South Tulimshar>" instead of "to".
Example commit about adding the new tilesets.

Here would go some description about what was added
Example commit about the maps.

Here would go a detailed description about what was changed.
Example commit about the new npc.
Example commit about the new monsters.