fixing Gemfile <-> Gemfile.lock disagreement

You are trying to install in deployment mode after changing
your Gemfile. Run `bundle install` elsewhere and add the
updated Gemfile.lock to version control.

If this is a development machine, remove the Gemfile freeze
by running `bundle install --no-deployment`.

You have added to the Gemfile:
* source: https://github.com/Snorby/delayed_job_data_mapper.git (at master)
* source: https://github.com/mephux/ezprint.git (at rails3)
* source: https://github.com/Snorby/snorby_cas_authenticatable.git (at master)

You have deleted from the Gemfile:
* source: http://github.com/Snorby/delayed_job_data_mapper.git (at master)
* source: http://github.com/Snorby/snorby_cas_authenticatable.git (at master)
* source: http://github.com/mephux/ezprint.git (at rails3)

You have changed in the Gemfile:
* devise_cas_authenticatable from `https://github.com/Snorby/snorby_cas_authenticatable.git (at master)` to `no specified source`
* ezprint from `https://github.com/mephux/ezprint.git (at rails3)` to `no specified source`
* delayed_job_data_mapper from `https://github.com/Snorby/delayed_job_data_mapper.git (at master)` to `no specified source`