set BaseProvisionerPlugin._mountpoint
prepare for release 2.0.171-dev
fix attribute error when --interactive not used
prepare for release 2.0.172-dev
remove chef configs.  these will come from the external plugin repo on github.
remove eucalyptus plugins.  these will be ported to the external plugin github repo
revert the bad distro merge.  rebase could have worked here if I hadn't alread pushed
revert the bad distro merge.  rebase could have worked here if I hadn't alread pushed