[fixes #2450] ember-cli-esnext by default
Ensure that in-repo addons are watched.
Merge pull request #2451 from rwjblue/ensure-in-repo-addons-are-watched

Ensure that in-repo addons are watched.
Merge pull request #2452 from stefanpenner/esnext

[fixes #2450] ember-cli-esnext by default
Merge pull request #2447 from quaertym/master

Add bowerDependencies() to Project
Add ember-cli-dependency-checker to app's package.json