added an email input box in the signup template
changed signup controller to also handle an email input and send an email input on http request
changed the /user route in server.js to also check for email conflicts, send back he appropriate error if so.
changed signup controller to handle email and/ or username duplicate errors
added an email input box in the signup template changed signup controller to also handle an email input and send an email input on http request changed the /user route in server.js to also check for email conflicts, send back he appropriate error if so.
changed signup controller to handle email and/ or username duplicate errors