Miser v2

I would like to run Miser on Heroku.
To do that, there has to be some encryption in database (pgcrypto).
Also a scheduler inside webserver process (rufus_scheduler).
Because I would like to send weekly and monthly reports.

- [x] move to phantomjs
- [ ] sinatra server to accept the passphrase
- [ ] generate/use gpg keys to encrypt postgres columns (pgcrypto)
- [ ] run daily/weekly/monthly reports inside web process
- [ ] have user login
- [ ] finish TODO