ngClass: Add support for conditional map in an array.

[bfanger]

Allows for ng-class expressions, like:

<div ng-class=" [classVar, {'is-active': activeVar }] ">

Which allows a directive to apply classes it got via attributes in conjunction with conditional classes.

{
    scope: {
       classVar: '@myBodyClass'
    }
}

The current situation:
(Assuming classVar is set to "panel" and activeVar is true)

Using a map inside an array sets the class to "panel [Object object]"

Using a map like {classVar: true, 'is-active': activeVar } would set the class to "classVar is-active" instead of the desired "panel is-active"

[petebacondarwin]

@bfanger - can you ensure that you have signed the CLA?

[bfanger]

I've just signed the "Google Individual Contributor License Agreement, v1.1"

[bfanger]

Rebased changes on v1.2.9 (makes travis-ci happy)

[bhollis]

I was just about to file a feature request for this! Is there something that could be done to make this more amenable to being merged?

[carlosbaraza]

Any news on this?

Thank you.

[petebacondarwin]

@bfanger - OK, this is a reasonable feature. If you can add documentation for it we can try to get it into 1.4 otherwise it will slip to 1.5, I think

[bfanger]

Travis CI failed on 02f8020 (trailing whitespace) which was quickly fixed in 07d2a97