(maint) Recognize `fc` as a type of redhat platform in acceptance setup

The beaker config file for fedora 18 in this project has a platform
starting with `fc` instead of `fedora`.
Merge pull request #557 from branan/maint/ci/fc_platform

(maint) Recognize `fc` as a type of redhat platform in acceptance setup
(maint) convert fc to fedora in acceptance configs

Beaker cares about the platform for package installation, and does not
recognize `fc` as a valid platform. The expected string is `fedora`
Merge pull request #558 from branan/maint/fedora_platform_name

(maint) convert fc to fedora in acceptance configs