fixed security warning of bundler
a little refactoring, while working into the code, before adding needed features
making existing tests run
refactoring and autoformated while work through the code to prepare needed feature changes
some autoformating
increased version string
autoformated while working through code
added metering_connection
refactored openstack authentication - shortened methods
while working through code to preparing adding needed features
removed q as possible parameter in MeteringConnection#bandwidth - and changed to possible query attributes.
dried authentication and separated exceptions
dried a bit openstack/connection
fixed tests for ensured server.finish change in authentication
added an identity-connection for tenant-request
fixed metering and added ceilometer-query method
added possibility to mix ceilometer-q-params with other params
fixed limit since it is no q-query parameter
added an easier access for different service_type-requests with same authentication and added specs for new features
added a small bit of documentation for new features