Merge branch 'serializer_support' of git://github.com/YAmikep/saferedisqueue into YAmikep-serializer_support

Also added some tests and documentation.

* 'serializer_support' of git://github.com/YAmikep/saferedisqueue:
  Fixes bug when there is no element to deserialize (pop timeout) => Check that the item exists before deserializing.
  Update README.rst
  Added documentation about the serializer option.
  Added support for an optional serializer.

Conflicts:
	test_saferedisqueue.py
Added Michael Palumbo to AUTHORS.rst

Thanks for the contributions! :)
Adds put/get terminology and returns uid for put.
Updates push/pop examples with put/get in README.
Updates the tests with put/get.
Updates the __main__ part with put/get
Update formatting in README.txt
put/push: return uuid as string; add tests and docs for this change.
Release 3.0.0
bump
Merge branch 'master' of https://github.com/hellp/saferedisqueue into develop

Conflicts:
	README.rst
	test_saferedisqueue.py