Documentation for Ionic specific Angular

I am trying to figure out where I would go to look for Angular specific code syntax on what is supported in ionic.
It is not clear what exact version of Angular and Angular Add-Ons that are automatically bundled in Ionic

Take for example the demo shown at: https://www.youtube.com/watch?v=ZjPRj2Vp74U

It uses UIRouter - which I think is an add on to Angular. But how do I know this and where do I get docs on everything that is included. I get that Ionic does not want to duplicate information, but is there some list somewhere beyond just pointing to top level angular.com on the subcomponents that Ionic includes so I know what is fully supported and where I can learn more

As far as I know, the current version of Ionic (Beta 13) uses Angular 1.2, and Beta 14 will use Angular 1.3. I believe the UIRouter is the only additional angular library brought in.