Jason Tedor 220a510d65 Make Priority an enum
Today we have an abstraction Priority for representing
priorities. Ideally, these values are a fixed set of constants with a
well-defined ordering which sounds perfect for an enum. This commit
changes Priority so that it is an enum instead of a class.
2016-07-15 08:55:49 -04:00
..
2016-07-15 08:55:49 -04:00