Progress: rolling out the roler, the "can manage roles" role

Progress: rolling out the roler, the "can manage roles" role

Using "can manage roles" was inconsistent with how I use the "is_X" role behavior but it is also similar enough that I feel that it should be an "is_X".
To try to make it consistent, I decided to invent a new word that fits the behavior: roler (Not to be confused with roller).

Just like how I abused the word "administrator" as "administer", I am abusing the words "role manager" as "roler".