1) scenario001: disable ceilometer tests on Ubuntu
Because we need this backport in UCA:
https://review.openstack.org/#/c/318503/
And we won't have it before... who knows?
Let's disable the tests for Ceilometer on Ubuntu until UCA provides a
packaging update.
Let's also disable Telemetry at all on Ubuntu, since Ceilometer can't be
tested until UCA does the backport.
2) add RDO Newton dependencies repository, so we have paramiko >= 2.0
and have a more stable gate.
3) Update RDO trunk URL to have a very recent URL.
4) Update nova endpoints to match with what is required upstream (2.1)
5) Un-pin Tempest, so we keep testing master (our desire in our master
gate but we pin it in stable branches).
Change-Id: I10dc1beeca3ec47fd4c3a866aa3e1d3bc9d0aa81
1c8c0d7c03