Remove ember-testing from production build
Merge pull request #2761 from teddyzeenny/ember-testing-build

Remove ember-testing from production build
adding docs for Ember.beforeObserver
Adds assertion for misnamed controller name provided to render helper. fixes #2385
Merge pull request #2765 from twokul/master

adding docs for Ember.beforeObserver
Added assertion for incorrect container lookup names
Merge pull request #2769 from sebastianseilund/normalize-assertion

Added assertion for incorrect container lookup names
Fix assertion, arguments.length should be less than 2
Fix typo
Merge pull request #2778 from bradfol/action-docs

Action helper docs
Merge pull request #2777 from bradfol/handlebars-helper-assert

Fix assertion for Ember.Handlebars.helper
update ember-dev
bump ember-dev
Add new backburner build

cc @stefanpenner @kagemusha
Version bump - 1.0.0-rc.5
correctly prepare starter kit during release tooling
don't forget to update the website during release preparation
Rake task: ensure clean before dist
update Gemfile.lock
Revert "Rake task: ensure clean before dist"

This reverts commit 835b8e514595d683b2d9fbb35bc585ce87c2516d.