Update dependencies

[mcfiredrill]

I think I got everything working on the latest versions of ember.

I also

• removed usage of jquery, as the default in ember is not to use it now
• set viewportSpy to true, as it seems to be required to work viewportspy sets viewportEntered to false (permanently) DockYard/ember-in-viewport#181

Still working on getting the tests passing...

[mcfiredrill]

Not sure if I should take anything from this branch as well
#58

[mcfiredrill]

I've almost got the tests passing, down to two failures:

Integration | Component | lazy-image: it leverages cache 
Expected: | {   "viaplaceholdercom150": true }
-- | --
{}
{   "viaplaceholdercom150": true }
at Object.<anonymous> (http://localhost:7357/assets/tests.js:85:14)

Not sure what the issue is with this one, if I look at the local storage in the devtools after the tests run I can see the cache is set properly.

I tried wrapping the check for the cache in waitUntil, but that didn't help.

I think this has to do with whether didEnterViewport fired or not.

Integration | Component | lazy-image: passing class names for the <img> element
Expected: | "lazy-image-container lazy-image img-responsive image-thumbnail"
-- | --
"img-responsive image-thumbnail"
"lazy-image-container lazy-image img-responsive image-thumbnail"
at Object.<anonymous> (http://localhost:7357/assets/tests.js:142:14)

I thought passing the class attribute to a component would concatenate with the classNames property automatically, but apparently not...?

[mcfiredrill]

Fixed the image classes test. I realized it was checking the class of the tag, not the component's tag.

The cache test should be working now, but still seems a little flakey sometimes.