Removed support for MyRedis

MyRedis is no longer operating as of July, 2014. They were absorbed by Garantia Data which is now RedisLabs.

	modified:   redisify.py
Merge branch 'develop' of https://github.com/peterfarrell/django-heroku-redisify into develop

Conflicts:
	redisify.py

	modified:   redisify.py