These two important rewrites are tied together, so I did a lot of the
player handler rewrite in this commit, even though it mainly tackles the
protection rewrite.
* Rewrote global protections
* Deprecated methods which are subject to change
* Protection system is now waaay more dynamic and provides an API
* Began to rewrite player handling
* Still uses DPlayer in many cases where e.g. DEditPlayer should be
used!
* Added class to represent the data file
