Add jasmine to tests - run automatically with node

(in a slightly hacky way)
Remove .html from links
Merge branch 'master' into remove-html-from-links
Remove .html from department link
Merge branch 'master' into remove-html-from-links

Conflicts:
	templates/all-services.html
	templates/high-volume-services.html
Removing .html from department header
Extract table macros and remove duplication
Use path prefix for internal links
Use STATIC_HOST for static assets
Remove EXPLORER_HOST system variable

It's preferred to use the |as_absolute_path to append the prefix
Remove digest from static asset's uri
Update README with new param
Add homepage graphics
Fix service detail generation
Remove generator metainfo
Add standard GOV.UK footer
Merge pull request #32 from alphagov/add-footer

Add standard GOV.UK footer
Merge pull request #31 from alphagov/remove-html-from-links

Remove html from links
Merge pull request #29 from alphagov/jasmine-tests-with-nose

Add jasmine to tests - run automatically with nose
Merge branch 'master' into fix-treemap-department-grouping