Key membership was checked more than once, should occur once per function call.
Minor improvement to get method. Removing unnecessary key membership lookup.
Merge branch 'upstream/master' into mergetest

* upstream/master:
  Delete .gitignore
  Rename module to namespace
  Updated README, increased default cache size
  Added szaydel's namespace feature with some refactoring

Conflicts:
	redis_cache/rediscache.py
Mostly clean-up items including addition of docstrings and some minor refactoring.
Fixed minor merge conflicts.
Merged docstrings