adding zremrangebyrank to FakeRedis + test
stop param is inclusive and do same with less code (thanks @justinvdm, @hodgestar)
Merge branch 'feature/issue-690-add-zremrangebyrank-to-fakeredis' into develop
pep8 fix for spaces around operators (thanks @hodgestar)
Merge branch 'develop' into feature/issue-675-expire-message-store-cache-keys