adding gym verticals content
retina images, image file structures, feature list
adding @2x dashboard img
Merge pull request #129 from gocardless/new-vertical-gyms

adding gym verticals content
Fix typo and link to Integrations
updating property content
Updating main menu (invert)

Changing size and content of inverted main menu + dropdowns
Merge pull request #132 from gocardless/new-vertical-property

New vertical property
Fixing merge conflicts
Reinstating page-hero--medium
Reinstating classes & assets needed for new verticals page
Fixing merge conflicts
Merge branch 'new-splash-pages' into new-verticals
Merge branch 'new-splash-pages' into new-verticals
Updating styles
Merge branch 'new-splash-pages' into new-verticals
Merge branch 'new-splash-pages' into new-verticals
Adding folders
fix Image conflict
Updating dashboard-frame image