remove mentions to queue.
added hmac signing for publishing.
added the capability to save and load subscribers (simple approach using
pickle) and ssl support.
Adding queue.py and storqge.py to sources according to https://github.com/progrium/wolverine/issues/1
Merge remote-tracking branch 'maximevaly/master'
Fix #3. Remove HMAC signature.
Fix #4. Fix URL concatenation.