change strategy to to check for updates without a page reload

[NullVoxPopuli]

This adds a dependency on ember-concurrency.
This polling strategy should give a more natural update feel.

Much code taken from: https://medium.com/@jonpitch/adding-a-new-build-notification-to-an-ember-application-c657211289f6

Resolves: #2
Blocked By: DockYard/ember-service-worker#130

[topaxi]

Awesome thanks! I'll merge this once the blocking PR is merged too. 👍

[NullVoxPopuli]

I'm super stuck on the blocking PR -- so if you want to take a look at it, that'd be a huge help. :)

[NullVoxPopuli]

the blocking PR is merged, but ember-service-worker hasn't had a new release

[NullVoxPopuli]

I'm now using this at https://emberclear.io

works great!

[topaxi]

Does that mean this is save to merge but not save to publish?

[NullVoxPopuli]

@topaxi yeah. we really need @DockYard / @eshtadc to publish ember-service-worker

[eshtadc]

Hi there - I published ember-service-worker 0.7.1 more than a week ago. I see it listed in the releases, but for some reason not in the commit history (looking into that). You can see it on npm registry as well. https://www.npmjs.com/package/ember-service-worker

[NullVoxPopuli]

thanks @eshtadc !!