Revert "removed stuff Ember.setupForTesting does automatically"

This reverts commit 5d039b1be8e7f27cbf0e4ceed8e539b41f009636.

Conflicts:
	blueprint/tests/test-helper.js
Merge pull request #667 from rjackson/revert-testing-change

Revert "removed stuff Ember.setupForTesting does automatically"