Flame needed pemanent adjustments to mathe the changes in the
python-openstackclients. We now use openstacksdk or shade which will
handle themselves the compatibility.
We also made flame modular so that any-one can add features by
implementing there own flame managers and adding their modules to
the `openstack_flame` entry point.
This new flame version is also fully compatible with python 3.
Change-Id: I586a165b5022031963f504874bd50e1b11fe0d27
Python 2.6 support would be dropped by
Infra team from mitaka,CI would no longer be testing it,
so projects should drop it too.
Change-Id: I173b71f8fd4b7240b29d27accd5ebae9f0634cde