remove fog deprecation warnings

    Use latest version of the gem

    [fog][DEPRECATION] #connection= is deprecated, pass :service in at creation (lib/fog/openstack/models/compute/server.rb:187:in `block in security_groups')
update RHEL6.4 Gemfile.lock for fog fog
Merge pull request #33 from kbrock/gem_fog

remove fog deprecation warnings