Auto merge of #1248 - barneycarroll:patch-1, r=acorncom
Auto merge of #1248 - barneycarroll:patch-1, r=acorncom

`cursor:pointer` shouldn't hit `disabled` elements

`cursor: pointer` is a mixed bag: on the one hand it can enable otherwise unavailable click handler functionality on certain elements; on the other, it forces a pointer cursor regardless of other factors that might disable this functionality.

Given the blanket `[data-ember-action]` selector, `<button>`s, for instance, will retain a pointer cursor even when they are `disabled`.

This qualification guards against that.

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