Added a require for the item class to piece.rb - fixes issue on deployment
Merge branch 'master' of github.com:uohull/hull-history-centre
HHCOC-73: Moved twitter tile into fourth column of section tile; adjusted grid colomns on different screen sizes; Removed news tile;
HHCOC-74: Clean up of assets
HHCOC-74: Clean up of assets
HHCOC-74: Fixes to footbar/header containers