Join and quote date correctly to have a correct If-Modified-Since header, resolves FORK-73.
Handle #as arguments properly.
Introduced named option for Gemfile directory to prevent ambiguity, this needs to be tested.
Introduced module interface database.

- added create-db
- added create-db-user
- pgsql now allows local connections w/o password
- pgsql now provides database
- mysql now provides database