Fixed callback in createUser function to pass back error along with user
Remove 4th type argument to angularFire
Update docs for createUser function
Merge pull request #81 from nirum/master

Fixed callback in createUser function to pass back error along with user
Fix bug in custom login initialization
Remove requirement to wait for promise to manipulate local models
First argument to angularFire/angularFireCollection must be a ref (not a string)
Use fromJson instead of JSON.parse for primitive values and check for atob
Fix reference error s/localval/local
Provide callback to updateExpression in custom login case
Use update instead of set to handle objects with limits