Dropping NodeAttrs from the injectable services

[vicb]

This is PR is currently in an early stage and will be subject to change.

Edit 0401:

• Also fixes change ng-repeat/ng-class/ng-style to use new change record in change detection #645 (ng-class, other are already done)

TODO:

• Some pending issues with ng-attr-*
• Some pending issues with ng-class
• Finalize the removal of the NodeAttrs usages

[mhevery]

These look good to me. Is this ready to go in? The title says WIP

[vicb]

Still some work to do on this one - I'll update the title and ping you when it's ready

[vicb]

@mhevery If Travis agrees, i think this can be merged. There are still some NodeAttrs usage left but I need more thinking to come to a clean solution.

[vicb]

Seems like this has been merged on 0404.