Description of problem:

When RDO packstack installs novnc, the vnc console in Horizon displays no output.

Forcing an install of novnc-0.4-9.el7.noarch.rpm fixes the issue, but only the 5.x version is in the epel-7 repo.  A previous run of packstack had installed novnc-0.4-7.el7.noarch which also worked

Version-Release number of selected component (if applicable):
openstack-packstack-2014.2-0.14.dev1401
novnc-0.5.1-2.el7.noarch

How reproducible:
Install CentOS7, epel, rdo-juno



Steps to Reproduce:
1. Install CentOS 7
2.yum install http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm 

3. yum install http://repos.fedorapeople.org/repos/openstack/openstack-juno/rdo-release-juno-1.noarch.rpm
4.  yum install openstack-packstack
5. packstack
6. start an instance on the cloud and use the console in Horizon

Actual results:
No output.  Just 3 buttons in the right: restart(?), shutdown, reset

Expected results:
Seeing the console output scroll by

Additional info:
If the earlier version of novnc was restored to the epel repo, I could do a yum versionlock as a workaround