Tornadis

- new get_client_nowait method (on pool objects)
- autoclose feature (on pool objects)
- autoconnect is True by default
- return_connection_error behavior is True by default
- BREAKING CHANGE: no ConnectionError raised anymore, the ConnectionError
is now returned (and not raised) in case of connection error.
- BREAKING CHANGE: return_connection_error option does not exist anymore
- BREAKING CHANGE: disconnect does not return a Future anymore !
- BREAKING CHANGE: connect() on an alreaydy connected Client object does not
raise ClientError exception anymore.
- BREAKING CHANGE: connect() returns a Future with True or False as result
(depending on the connection success)
- BREAKING CHANGE: TornadisException object is not public anymore

- autoconnect feature (8) (see autoconnect option)
- bugfix: behavior with empty pipeline (10)
- BREAKING CHANGE: split call() method in call() (for futures) and
async_call() (for regular callbacks)
- BREAKING CHANGE: fix some problems in case of connection drop
(see return_connection_error option)
- update requirements
- benchmark script is not py3 compatible

- fix issue 5 (typo in 0.2.1)

- fix a high cpu usage during blocking commands

- WriteBuffer object has now its own file
- WriteBuffer object is now public
- You can use a WriteBuffer object as a redis command argument

- fix a pip issue with tornado dependency