First stab at refactor to split distro out of provisioner.
replace provisioner context with distro context
more refactoring
more refactoring
more refactoring
add distro to environments
update configs
tolower(RedHat)
fix volume mountpoint reference in BaseProvisionerPlugin._stage_pkg()
Merge pull request #135 from mtripoli/mtripoli-plugin-refactor

refactored provisioning plugin