define openstack-havana repo as bare link

rdo rpm for some reasons comes with puppetlabs and other useless repos
we need kernel and iproute with namespaces support
install openstack kernel and iproute with namespaces
AMQP backend must be defined in neutron.conf
fix for auth via keystone
fix api-paste.ini token section
fix code formatting
Merge pull request #19 from MirantisDellCrowbar/sbubnov/bug/rhel-havana/namespaces/hydrogen/master

https://github.com/crowbar/barclamp-neutron/pull/19

Merged by devtool for ArkadyKanevsky