Added a way to load different maps using terminal arguments + new mappack
Added a new way to load the different maps you've made by using a terminal argument.
If I've got a map called foo.map, I'd start the game like this:
$ python2 CApp.py foo.map
Also started on a Space is Key mappack, which is very dull at the moment, because I find it hard to make it just as advanced as the maps in Space is Key really are.