Merge pull request #2 from akbardhedhi/master

Change default taxi format to liveries
Add default image for Taxi Formats
Rewrite output of Generic Promotion View, to contain columns and display as per design
Added title to Most Viewed Case Studies view, and amended output of view to include classes on the <ul>
Remove title from Video Gallery Panel Page
Change Homepage News/PR/Youtube output from 4 items to 1. Rewrite Video Gallery output to display in columns as per design
Modifying views for orbit