Set the width of "more info" for small modules

When a module is only half or a third of the width of the page (cols2
or cols3), its "more info" is set to a third of that width.

This commit adds Sass so that the info on a small module is the size
of the module.
Add type to dashboard config used in fallback
Put status buttons at the top of the README

Easier to scan on github.com page.
Merge pull request #814 from alphagov/79852326-bugfix-more-info-width

Set the width of "more info" for small modules
Merge pull request #815 from alphagov/add-type-to-dashboards

Add type to dashboard config used in fallback
Remove comment about client_instance script

The script attribute of a client_instance is tested in the view,
for example in body-end.html:

    <% if (model.get('script')) { %>

It can be set to false to disable including of our rather large
JavaScript assets.
Remove query params when using Stagecraft API

When we pass a path onto Stagecraft to find out information about
a dashboard, we don't want to include any query parameters because
this will cause Stagecraft to return a 404.
Merge pull request #816 from alphagov/79950942-bugfix-cachebusting-stagecraft

Remove query params when using Stagecraft API
Make single-stat graph take all formatting options.

Single-stat graph should respect any formatting option set at
module level, not just duration.

This is required for the user satisfaction graph on the SLC
dashboard.
Merge pull request #818 from alphagov/feature/percentage-formatting-on-single-timeseries

Make single-stat graph respect formatting options
Inital part of the new column module.

Can be configured to use max-bars

It's basically the same as a bar-chart-with-number for now however it groups a collection and does some other bits to the collection to get the x-axis working in bar charts.

Updated the controller_map to use the new column module.
Tests for the column visualisation.
Added the ability to add a label to the x-axis of the graph.
Made the default labels for the graph obviously bad so they're implemented in the json.
Add in concept of a `column-graph` to markup

- Adds in a modifier to a `single-decker-graph`, the only change this makes a the moment is to add extra height to the graph, but could be useful for future modifications
- The SCSS is very nested, this is a shame, but probably shouldn't be tackled here
Merge pull request #819 from alphagov/feature/column-module

Feature/column module