You can clone with
HTTPS or Subversion.
I think it would be a good idea to check for the presence of the taggings + tags table in the migration where it should be adding while installing this gem. I already had this installed from another refinery gem.
So maybe something like:
unless ActiveRecord::Base.connection.table_exists? 'taggings'
and same for tags.
Merge remote-tracking branch 'origin/squash_migrations'