Enable second shelly cloud for hacken.in-master #355

Add new domains and a second host config to Cloudfile (master + release)
Enable deployment with both mysql & postgres gem #355

Shellycloud deployment will go postal if there is no 'pg' gem in our
Gemfile, so we'll switch to postgres in our live environment and leave
the development environment with MySQL until #364 is resolved.
Merge pull request #374 from hacken-in/issues/355

Zombie-PR of 369