Carrying classes and ID's forward to the IMG tag about imager.js

[firegoby]

This only copies over the ID and Class attributes (not any custom attributes like data-x, not sure how best to handle that without more thought). Also this is only lightly tested on my test suite so if you run into any weird behaviour please let me know, thanks.

edit: Oh - and could you expand on the this.divs issue, wasn't quite sure what needs addressing, thx

[andrewminton]

Cool beans!

The 'this.divs' thing was me not understanding how the configuration options we're built. so ignore that one :)