Using worker pool to process Pubsub requests in the background
Preserve API: Only do background requests when explicitly asked for it
Merge branch 'master' of https://github.com/victronenergy/velib_python
Reinstated spacing as used in the original file; revert back to blocking requests if pool is not available
Added documentation
Merge branch 'master' of https://github.com/victronenergy/velib_python
Added documentation about the origin of the Pubnub.py file
Removed duplicate comment lines
Merge pull request #2 from quinox/master

Allow non-blocking calls to PubNub's publish()