Add model for User
  Finish Section 6.1.  Go to secton 6.2 now
Add integration tests for User
  should respond to :email and :name

  This finishes section 6.2.1, go to Section 6.2.2
Validate presence of email and name
  Go to section 6.2.3 now
Validate name for length (< 50 chars)
  Go to 6.2.4 now
Test to verify email uniqueness
  Go on to section 6.3.1 now
Add password validation tests
  Proceed to Section 6.3.3
Write tests for password
  -Check password length
  -Check if it authenticates
  -Check if password matches its authentication

  -Move on to Section 6.3.4 now
Add validation for password length
  -Go to section 6.3.5 now
Add seed user to db
  -Finish section 6.3.5, go to 6.4
Finish exercises in Section 6.5
  -Go to Chapter 7