Remove text from about page at Rosalie's request
Change 'Developers' to 'Get a dashboard'…

…at Rosalie’s request
Remove Blog from nav at Matt Sheret's request
Reorder SORN dashboard to match standard template
Reorder Tax Disc dashboard to standard template
Moved the impact number to the right.
Add line to the bottom of single line graphs.

Remove the fill colour.
Merge pull request #689 from alphagov/reorder-tax-disc-dashboard

Reorder tax disc and SORN dashboards
Merge pull request #688 from alphagov/about-and-nav-tweaks

Tweaks to the about page and navigation
Fix total-vat-registered-businesses
Fix vat-registrations-and-deregistrations
Fix tax-collected-per-year
Fix total-cost-per-year
Rename cost-of-collection-per-100-pound
Fix total-tax-collected
Fix tax-collected-by-tax-type-table
Fix cost-of-collecting-100-gbp-in-tax
Fix cost-of-collecting-100-gbp
Fix vat-collected
Fixes for vat-content dashboard