Create a shared context for creating a test User
Ensure user data is updated when a valid PUT request is sent
Ensure 404 is returned when a request tries to update a missing user
Ensure 400 is returned when a request tries to update missing attribute(s)
Ensure 400 is returned when any other invalid request is sent
Create an endpoint for updating user attributes
Merge pull request #3 from pawanpoudel/features/update_user

Features/update user