Adapted the creatures definition to the new format.

I also removed some old or obsolete code and adapted the .gitignore file to latest changes.

Fixes #151
Updated the spawn pools.

Move the Wizard and Gnomes to Hero teams. Added Slimes where missing...
Fixes according to @hwoarangmy's input.

+ Renamed Dance Rate to Claim rate.
Added the config/ folder to installed data and symlinks

Thanks to @hwoarangmy for pointing out. :)
Merge pull request #226 from Bertram25/new_parser

New creature definition and parser
- Trap/Room creation in a more objet way (avoiding void* pointers)
- Removed ODPacket.h from header files where it is not needed
- Prepared Traps to allow trap specific parameters
- In level files, traps/rooms are not anymore identified by their mesh but by their type
- In level files, traps/rooms are separated by [Room][/Room] [Trap][/Trap]
- In the level files, rooms/traps with 0 tiles are not saved anymore
fixes #228