Change requirements
Change requirements

We don't need ruby or postgresql (We install that in the docker image), and we
figured out that at least 1024 ram is required.

Fixes: #163

intercity/intercity-next,intercity/intercity-next,jvanbaarsen/intercity-next,intercity/intercity-next,jvanbaarsen/intercity-next,intercity/intercity-next,jvanbaarsen/intercity-next,jvanbaarsen/intercity-next