Revert "Ignore Gemfile.lock"
Revert "Ignore Gemfile.lock"

This reverts commit 03515aad012042d38ca20cb79eea71417f56aed6.

rust-rethinkdb/reql,rust-rethinkdb/reql,rust-rethinkdb/reql,rust-rethinkdb/reql,rust-rethinkdb/reql,rust-rethinkdb/reql