Added attributes.xml

Used for telling the client about the minimum and maximum amount of
points each attribute can have as well as the amount of points that need
to be distributed.

The listed attributes are only used to validate the correctness of the
character starting points. We could make the client use them, but that
would be at the cost of internationalization.

See http://bugs.manasource.org/view.php?id=501
Add note in some xml files that they are only used by manaplus.
Merge remote-tracking branch 'bjorn/attributes'
Add comments to attributes.xml and charcreation.xml making clear which is used by which client.
Remove attributes.xml again, since charcreation.xml is now supported by the mana client too.
011-1:

* Renamed SubFringe to Ground2.
* Moved x1 tiles from Fringe to Ground2.
* Added grass tile to 55,112 on Ground and moved cliff tile to Ground2 - reported by enchilado.
* removed collision at shore to fit global standards.
Settings.xml is needed for the mana client
A comment description for settings.xml
Merge pull request #11 from atheros/settings-xml

settings.xml is needed for the mana client
Adding license file with incomplete list of artists.

The information was collected by Alige.
Update license file with EJlol as author of the orange item.
License file: fix directory name of tileset graphics.
Add Crush and Saphy as authors to several graphics.
Add Yuuki as author of the mushroom sprites.
Add 1x3 wall tile for partition wall use
Add 034-2: Snow forest indoors (trappers huts), add warps to 034-2 in 034-1.
Remove additional wrong warp from 034-2.
Add authors to mouboo, mush hat and shroom hat.
Fix some misspelled or non-existing filenames in license file.

Found them using "grep graphics/ license.txt | while read name etc; do test -f "$name" || echo no such file: $name; done"
There are still some missing to be fixed.
License file: fix more misspelled / non-existing files