For redis==2.4 still use ``redis.Redis`` class, not switch to ``redis.StrictRedis`` class.
Fix configuration for running redis servers for test.
Small updates to Makefile, make possible to run server with any env.
Switch to use ``redis.StrictRedis`` class by default, remove obsolete docstrings, several modifies to source code.
Rewrite README, get ext version from Python module, not place it in setup script.
Update default test case with test for recent changes + add test to passing unix socket path to host value and connecting to redis via url without port.
[Fixes #3] If host value is unix socket pass it properly to redis connection. Plus add ability to omit redis port in URL, when using default one.