Ensure last loaded blueprint takes precedence
Adding import prepend flag
Unit test for app.import prepend
Fix formatting of some lists

There was some leading whitespace in front of a few lists that was causing them to be interpreted as code blocks instead.
Merge pull request #2715 from nonsensery/contrib-formatting-fix

Fix the formatting of some lists in the contributing guidelines
ember command usage
Merge pull request #2657 from marcioj/mj-ember-usage

ember command usage
Merge pull request #2668 from trabus/before-vendor

Add app.import prepend flag
Merge pull request #2693 from fauxton/fix_blueprint_overrides

BUGFIX: Ensure last loaded blueprint takes precedence
Updates broccoli-asset-rev to 2.0.0
Merge pull request #2741 from rickharrison/asset-rev-200

Updates broccoli-asset-rev to 2.0.0
Update Ember to 1.9.0.