TO DO 

Generate User model

Set up Sorcery


Cancan rules in ability.rb
	- users can only see their own files



lock down convoyd_files/index and index of files for user

Set up cron job to remove files after 48 hours.


Create public view for convoyd_files with link to download.


CHANGE convoyd_file.crypted_password to convoyd_file.password


**Change mailer server settings from yale's