call offAuth() with correct method.
closes #471.
Actually pass the callback to ref.onAuth().
Style fixes to $firebaseAuth
Add concat step to all builds running protractor tests.
Protractor tests fail unless the concatenated sources are generated first.
Merge pull request #473 from jamestalmage/offAuth-fix

call offAuth() with correct method.
Remove extra commas from Gruntfile
Fix debounce usage in FirebaseObject
A new debounced function was being created on every call to `scopeUpdated()`.
That's probably not what we want. Instead create it once and call the same
instance on every update.
Merge pull request #481 from jamestalmage/debounce-fix

Fix debounce usage in FirebaseObject
Merge pull request #475 from jamestalmage/build-fix

Add concat step to e2e test builds.
Spelling errors in utils.js
Merge pull request #484 from jamestalmage/patch-2

Fix Spelling errors in utils.js