Added priority dict.
Added priority dict.

* Will be used within the shepherd. Committed early for benefit of
  creator.
* The code was licensed under the unlicense but has been modified
  slightly therefore is now a derivative licensed under the AGPLv3 as a
  part of Galah.

brownhead/galah,galah-group/galah,ucrcsedept/galah,brownhead/galah,galah-group/galah,ucrcsedept/galah,brownhead/galah,galah-group/galah,ucrcsedept/galah