Allow using a URL instead of just host:port.
Removed dependency on hiredis since it's not used anywhere
Flipped the conditional...
Merge commit '8530233f189677d5f18f6c4f710b7c9a5e488d3b' into unified

Conflicts:
	qless/worker.py
Merge commit '436e88d01f1bce14caa151abe49b29cd82216c4e' into unified

Conflicts:
	qless/worker.py