Update .coveragerc

Set up proper source and omit options.

Change-Id: I966256a3a3bd37b438e98e7bcf1402482c42b567
Implements: blueprint update-coveragerc
management_url not set by authenticate method

Fixes Bug 1109243.
If management_url not set, raise UnAuthorized exception,
otherwise url chaining methods fail and cause NoneType
exceptions.

Change-Id: I19e87a5dcfcf93b4fa1d423bd99de352679fa16d
Merge "Update .coveragerc"
Merge "management_url not set by authenticate method"