String filtering works for various map strings.
Merge branch 'master' of github.com:DiscoBizzle/Ghost-Simulator
Merge branch 'master' of github.com:DiscoBizzle/Ghost-Simulator
Merge branch 'master' of github.com:DiscoBizzle/Ghost-Simulator
Merge branch 'master' of github.com:DiscoBizzle/Ghost-Simulator
Merge branch 'master' of github.com:DiscoBizzle/Ghost-Simulator
Added JSON loading to Maps class.
Got rid of devel load_map.py, now in Maps.py.