Update to Neo4j 2.1.2

Signed-off-by: Byron Ruth <b@devel.io>
Add Python 3.4 to Travis, tox.ini and DCO

Signed-off-by: Byron Ruth <b@devel.io>
Remove various central loggers

To allow for more granular logging, each module should initialize it's
own named logger. Handlers can should to propagate messages in packages.

Signed-off-by: Byron Ruth <b@devel.io>
Ensure all tests are using unicode literals

Signed-off-by: Byron Ruth <b@devel.io>