title: What's the point of Rolify and CanCan?
body: <p>I'm working on a RoR project and I'm a little confused about this new gem that was recommended for my purposes, Rolify. As I understand it, rolify does pretty much the same thing as CanCan except it persists abilities (roles for rolify) to the database. However, all over the Rolify wiki, I see instructions on using Rolify with CanCan.</p>
  
  <p>So basically, I'm wondering what's the difference between Rolify and CanCan? When should I use the one and not the other?</p>