Implemented list page for site activity dashboards
Clean up templates in dashboard list pages

Two templates varied only by a small amount of copy, so refactor to allow them to share a single template.
Remove hard-coded "web traffic" from site activity dashboard titles

This can be added dynamically in the dashboard view and helps keep the dashboard list clean
Dynamically create department and agency lists

Instead of creating files at start-up, dynamically create department and agency lists based on the values present in a filtered subset of the dashboards list.

This means that we only display departments and agencies in the dashboard list pages which actually have related dashboards available.
Adjust css for dashboard list pages

Styles were dependent on the exact height of the left hand column content, which broke when the dropdown menus were made dynamic. Making the left hand column position absolute means we can always stick the right hand column to the correct point.
Only write query parameters if they're set on dashboard list pages

In particular "agency" is not always in the form, so shouldn't be added to the query string.
Configure template params in dashboard list pages

So lists can have their own search examples.
Add one click deploy button for heroku
Fix filtered list tests
Set key value to string, so it works properly in heroku dashboard
Populate responses (votes) on user-satisfaction

New method populateResponses gets last available model or the selected (hover model)

Tests for the new method
Make total responses (votes) black
Merge pull request #731 from alphagov/feature/one-click-heroku

Feature/one click heroku
Fix width on filtered list select boxes
Merge pull request #732 from alphagov/feature/user-satisfaction

Respones (votes) on user-satisfaction
Merge pull request #728 from alphagov/feature/content-dashboards-list

Feature/content dashboards list
Add note about bug in heroku deploy button
Merge pull request #733 from alphagov/documentation/heroku-deploy-button

Add note about bug in heroku deploy button
Change copy for browser / device module

I've changed "slug" "title" and "description" - does this work?
Merge pull request #734 from alphagov/feature/textamends

Change copy for browser / device module