One missing character, but still...
Merge pull request #157 from jamesarosen/pjm/makefile-typo

Minor typo
translateHelperSpec: restore Ember.Logger.warn

We were spying on Ember.Logger.warn in the beforeEach, but never
restoring it to its native behavior in an afterEach.
Makefile: check for node, npm, phantomjs

This commit moves the `npm install` command into a new
`development_dependencies` target that also ensures that `node`,
`npm`, and `phantomjs` are all available on the path.

Closes #137
Merge pull request #159 from jamesarosen/james/restore-warn

translateHelperSpec: restore Ember.Logger.warn
Merge pull request #158 from jamesarosen/james/dev-dependencies

Makefile: check for node, npm, phantomjs
spec_support: stub Ember.deprecate

We don't want to see deprecation messages in our test output, but
we *might* want to run expectations on what warnings were emitted.
Deprecate use of tagName with {{t}} helper