Ignore the .bundle file
Use ENV.APP for application log settings. Similar to ember-cli

See: https://github.com/stefanpenner/ember-cli/blob/master/blueprint/app/index.html#L20
Merge pull request #612 from bantic/use-ENV.APP-for-application-logging-settings

Use ENV.APP for application log settings. Similar to ember-cli
Merge branch 'master' of github.com:stefanpenner/ember-app-kit