Downgrade version of python-keystoneclient to 0.2.4
Merge pull request #108 from Mirantis/fix_python_keystone_client_version

Downgrade version of python-keystoneclient to 0.2.4
fixing issues with discovering and heatclient
Merge pull request #109 from Mirantis/fix/discovering

fixing issues with discovering and heatclient
fixing deps
Merge pull request #111 from Mirantis/fix/deps

fixing deps
Rebased to master branch