Setup welcome page & localization support

Few lines of ruby code, mostly env setup.
Actually, @winston how would we go about testing if we want to ensure database agnosticism? At this point, it seems like all the open-source databases don't have first-class support for having distributed databases. PostgreSQL relies on a patch; MySQL doesn't have it natively, Maria requires Galera. I think it might be prudent if we ensure that our code works with all of them... what do you think?