Add v1 distributions dir to clean up
Merge pull request #267 from pulp/prad-v1-upgrade-publish

 Adding support for ISO filesystem upgrade
Added display of repo IDs that failed during the publish
Changed _id generation for units to be uuids
Fixed incorrect substitution
Added ISOs step to filesystem upgrade
Fixed incorrect usage of uuid
Missed the RPM/SRPM ID in the move to uuid
Added migrations initialization
Added step to create repo working directories and set their permissions
to apache