Made yumrepo defaults configurable through hiera.
Removing config parameter from yumrepos (now must use hiera).
Adding "system::yumrepos::files".
Updating yumrepos documentation.
Updating release notes for 0.8.2.
Merge pull request #1 from andrewkroh/feature/configurable-yumrepo-defaults

Feature/configurable yumrepo defaults