Used vh unit to fix ui to viewport height
Abstracted css selector for scrollable viewport
Added feature detection for CSS3 vh units
Added story package feature swicth
Fixed typo
Merge pull request #39 from guardian/switches

Added story package feature swicth
Add afterpaste the valueUpdate
Merge pull request #40 from guardian/search-box-fix

Search box fix
Merge pull request #38 from guardian/viewport-height

Used vh unit to fix ui to viewport height
Articles draggable from any Guardian website
Better duplicate check for articles
Merge pull request #41 from guardian/draggables

Allow article dragging from any Guardian site