* Relax CSP to allow iframe assets to load
* Integrate socket.io proxy
* go to /# when controllers not initiated
* Add offline caching using AppCache manifest
* add custom login ability
* encrypt email password
* allow arbitrary tcp connections
* add db migration script v3 -> v4
* add bug reporting capability with the axe logger
* fix nonexistent folder handling
* enable message upload after sent
* use plain text alternative body when replying to html mails
* Move set-credentials.* -> login-set-credentials.*
* Use login styles for set-credentials
* Make OAuth optional