Import html and styles from prototype

This is taken directly from the prototype branch worked on by Tom, Amy
and Guy.
The view has been renamed to search given the start page is now to remain.
The javascript has not been brought in for this initial version as the
first release will be not feature javascript enhancements.

Mark heading test as pending until fixed.
Integrate static html into application

Remove feeds and pagination until implemented.
Remove tests that aren't relevant to the new application design.
accessability fixes
Replace static scheme results with Imminence data

Update gds-api-adapters to eliminate duplicate result bug.
Simplified parameter requirements of Scheme.lookup().
Implement filtering of scheme results

* Text for checkboxes changed after conversations with Liz and Amy.

* Updated Capybara to get access to page.assert_selector.
* Moved integration tests for Capybara upgrade because Capybara only
  includes 'visit' etc in features/ in this version.
* Upgraded rspec to latest to get the gds_api helpers to be included
  following the Capybara upgrade.
updated css and html header on start page. Updated paragraph copy. CSS of zero results
Start page test no longer pending

Designers have corrected the title
css changes to button
Removed big class from button, unneeded. Removed 100% width.
Cool, seems my prototype code is good enough for production :) Gets the thumbs up from Mr Byers.
Indentation & whitespace