Adds a user model using mongoose
Adds in city and state to mongoose userModel
Adds email as well
Merge pull request #34 from jamesongamble/userModel

Adds a user model using mongoose
Makes email, city, and state required fields
Merge pull request #35 from jamesongamble/userModel

Makes email, city, and state required fields
Fixes require on line 40
Merge pull request #36 from jamesongamble/userModel

Fixes require on line 40