updated reference to correct resque branch, updated gemfile deps

I started down this path trying to get the `tzinfo` gem updated so it'd play nice in my projects, but ended up fixing the project reference to the `resque` repository.

I then dropped the `Gemfile.lock` file and rebuilt it.  Lots of things updated, so I'm not sure what kind of damage will be done (or not).

Guessing you would like to stick to Capistrano < 2.0, correct?