starting on pro content
adding tab behaviour
adding pro dashboard images
scrollspy update in correct place and added pricing
added scrollspy for pricing
Merge branch 'new-splash-pages' into new-pro-page
adding SEPA content
Merge branch 'new-splash-pages' into new-pro-page
Fixing conflict
Fixing
Refactoring pricing-tabs link
Tweaking spacing
Merge pull request #149 from gocardless/new-pro-page

New pro page (/pro) - DO NOT MERGE