moving hex generator to helper, changed core to use the helper and added tests
changing token, tenant authentication to fetch session by tenant
plugin for queues
remove commented code and rename cache
fix lint issues
more lint issues
lint issues
more linting, because TOX will not run locally
this is a bit ridiculous and nit picky
reviews
Merge pull request #118 from rackerlabs/add_random_hex_generator_function_to_helper

RFR: adds_random_hex_generator_helper_function
Merge pull request #121 from rackerlabs/tenant_token_auth_session_by_tenant_id_only

RFR: changing token, tenant authentication to fetch session by tenant
Merge pull request #119 from rackerlabs/queue_plugin

RFR: Queue plugin