Updates for RHEL 6.5

* Updated documentation to reflect the changed image name
* Updates to add wget since it's no longer part of the base image as of 6.5
* Update the heat template image name reference
* Removal of epel base dependencies that are now part of the base image as of
6.5

Change-Id: I8f87b2baa2d96d05849647d2fb3a43471fe65066