add Gemfile.lock to track working ruby app
add Gemfile.lock to track working ruby app

a Gemfile.lock fixes the versions for your dependencies, so users
can run it in a known, working state.

OpenBEL/openbel-api,OpenBEL/openbel-server,OpenBEL/openbel-server,OpenBEL/openbel-server,OpenBEL/openbel-api,OpenBEL/openbel-api,OpenBEL/openbel-api