Update Gemfile

Rip out protected_attributes

Use cucumber-rails, not cucumber; selenium; updated version of will_paginate.
Implement strong params
Update markup for debugging
Misc Rails 4 query fixes
Add integration tests for strong params

...along with a few other things. This commit also relocates our Cucumber tests from
features to spec.

Right now, we have to run RAILS_ROOT=/rails/root/directory bundle exec cucumber spec/features/,
but I am going to fix this.
use patch, not put in profile update route
Merge pull request #469 from sunlightlabs/strong-params

Strong params