Remove duplicate line from catalog generation script
Add the User model

* Update Flask, Flask-Login and Flask-WTF
* Concept of an Admin (env variable "ADMINS" as a comma seperated list of
usernames)
* User collection
* Ability to edit name/email/organization
Add additional fields to a mission including the WMO ID
Massive cleanup of missions/users/urls/etc.

Focused on Mongo over filesystem now.  Everything should start in webapp.