fixes #7747 - bootstrap epel instead of fixed URL
Add plugin support
Merge pull request #100 from stbenjam/7747

fixes #7747 - bootstrap epel instead of fixed URL
Merge pull request #86 from pitr-ch/master

Add support for plugins
Install yum mirror plugin
Merge pull request #102 from kbidarkar/yum-mirror-plugin

Install yum mirror plugin
`bootstrap-epel` now takes up os release version.

This is needed as RHEL OS default release version includes even the
minor version, whereas the CentOS has releasever with just the major
version. 6 vs 6.6 or 6Server
Merge pull request #103 from kbidarkar/fix-releasever

Override the default RHEL releasever
adding 2.1 support to setup.rb