Improvements and more

* Continued SQLite implementation and storage
* Register with /register <password> to get a player ID
* Login with the ID you got with /register from before and your
password: /login <ID> <password>
-> Players are able to have the same names
* Ban players by ID or IP
* Teleportation to coordinate
* Entity type/level to string conversion
* Distance calculations and prevent over-long-ranged attacks (anticheat)
* SHA224 hash generation with salt e.g. for passwords stored in database

*
Merge branch 'master' of https://github.com/Jakky89/cuwo

Conflicts:
	cuwo/entity.py
	cuwo/packet.py
	cuwo/server.py