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
Remove Coverband (which was commented out)

Also remove Redis, because it was installed for Coverband (see
fc92885b8a36dafee490111c02c1bf076f7a6c64)
Merge pull request #469 from sunlightlabs/strong-params

Strong params
merged master