Rspec refactor.
Merge pull request #62 from anjankumarhn/QAUTH-34

[QAUTH-34]->[master] Rspec refactor.
Merge pull request #63 from RaviShankarArya/QAUTH-42

[QAUTH-42]-->[Master] 	Admin should be able to update the user_type
Refactored rspec for user model
functionality for admin should be able to update user_type
Refactored user model spec