Update homepage link to prototypes page
Add feature tests for static pages

These pages are important. We should make sure that they stay up
when code changes.
Remove development_no_vm configuration

This doesn't do anything that you couldn't do by adding a single
host entry for spotlight.perfplat.dev and using the development
config.
Add ability to use a gitignored config in dev

This is nice if you like to use preview or production data regularly
in development.

Also massively update the README.
Switch order of stacks on GOV.UK as requested

Signed off by Mr H. H.
Lint visitors-realtime.js
Add GDS/UK specific datetime config

There are a couple of differences from standard Moment here:

- LT: instead of '8:30 PM' we render '8:30pm'
- L: instead of '03/24/2013' we render '24 Mar 2013'
Change display of labels on realtime sparkline

- Remove right hand label on hover
- Bring relative time onto separate line
Merge pull request #206 from alphagov/65713756-realtime-sparkline-design-tweaks

Realtime sparkline design tweaks
Merge pull request #203 from alphagov/static-pages-feature-tests

Static pages feature tests
Merge pull request #204 from alphagov/better-dev-config

Better dev config
Addition of student-finance stagecraft config

Add student-finance dashboard configuration
Add student-finance browser and device module configurations
Merge pull request #207 from alphagov/add-student-finance-stagecraft-stubs-for-device-browser-visualisations

Addition of student-finance stagecraft config
Add a tool to lint Stagecraft JSON
Run linter on Stagecraft JSON

This has highlighted a couple of embarrassing inaccuracies in our stub
data, including one page where we are showing incorrect data.

Where I have made changes, I have used the dashboard as the true source of
data, as I assume it has had more eyes on it.

Visible changes:

- Fix data swap on pay-register-{birth,death}-abroad service-availability pages (!)
- Fix description on GOV.UK dashboard
- Fix period and title on housing/average-first-mortgage page-per-thing
- Fix description on 1 housing page-per-thing

No-op, stub improvements:

- Add several blank descriptions where they don't exist
- Change 1 absolute link to relative (almost a no-op)
- Fix 3 dashboard-straplines
- Add matching-attribute to main FCO dashboards (being explicit about default)
- Remove _start_at from g-cloud dashboard (no-op as far as I can tell)
- Remove 7 slugs from page-per-thing pages
- Add cumulative false to 1 housing page-per-thing (no-op?)
- Improve no-realistic-dashboard
Improve feature tests

There's no need to have a matcher for every page.
Merge pull request #208 from alphagov/lint-stagecraft

Lint Stagecraft JSON
Merge latest spotlight changes into branch