Fixed bug in express-validator module name.
Fixed bug when creating model.
Added modal window.  Added names to form groups.

Added modal window to display errors and feedback.  Added names to form
groups for validation / user feedback testing.  Removed icon from
register button.
Added form validation and account creation logic.

Added code to validate form input and send error response; handle
password salt/hash and handle errors; determine if a user account with
same email address exists and handle errors; create and save new
account and handle errors.
Added logic for register view.
Updated implemented/planned features.