Bump version
Start allowing tests to run against redis-server and redis-py
Make zset tests work with actual redis
Allow hash functions to use real redis
Support actual redis-server tests for list, set, and pipeline commands.

Ensure that WatchError is raised.
Clarify test purpose.
Document exceptions to redis-server testing
Merge branch 'feature/nativetests' into develop
bump version
Add better error message for test failing in travis
support for SORT
use key param to support instead of cmp for compatibility across python versions
Add clock abstraction instead of embedding datetime.now()

Improve unit tests to compare expected ttl against ttl with delta.
Merge branch 'support_sort' of git://github.com/shearic/mockredis into shearic-support_sort
Formatting, flake8, and py3 fixes for sort()
Implement correct usage of alpha in sort()
Merge branch 'release/2.8.0.3'