* auth_token middleware now uses default in-memory caching
* initial V3 token support
* auth_token middleware does retry on connection refused
* updates to use oslo config and common libraries for Grizzly RC1
* updated help documentation and output
* a small number of other bug fixes
* auth_token moved into keystoneclient
* tech preview of V3 API enabled in keystoneclient.v3
* client now supports command line override of endpoint
* solidification of internal API for other clients to use
* can cache token and reinitialize with cached token
* AccessInfo to provide consistent API to get token information
* updated logging to show timing differences between request and response
* changed CLI options from underscore to dashes for cert options
* added nosehtmloutput as a test dependency