created entities branch to try to separate enemies and equipment data into separate files. Initial commit contains high-level plan
creation of entitydata.py.  Defintions for entity stats and probability info.  removed this info from map.py to streamline entity handling.  Added reload(entitydata.py) in dugeoneer.py, but still need a function to update each exisitng object in the game after a reload.
minor formatting updates. removal of TODO_generalize_entities.txt.