Merge pull request #6 from softlayer/develop

[INTERNAL] Update contribution guidelines to reflect use of git-flow bra...
Merge pull request #7 from softlayer/develop

[INTERNAL] Update contribution guidelines to reflect use of git-flow bra...
Merge pull request #8 from softlayer/develop

Add additional details to upgrade information
Closes softlayer/sl-ember-test-helpers#21
Merge pull request #27 from notmessenger/EmberCli4

Closes softlayer/sl-ember-test-helpers#21
Merge branch 'develop'
Changelog entries for v1.1.0 release
1.1.0