fix widget html test files
fix to make React work with IE9
show rotated heatmap column headers in IE9+
tell IE to user latest (ie: edge) renderer, rather than IE 9, as per html5boilerplate. This makes the heatmap column headers have a border in IE 10 and IE 11, and means the gene distribution panel shows. Fixed the gradient and rotated the tick in IE10 and IE11
ie8: fix so heatmap displays
ie8: fixes to make heatmap display
do not rotate factor and contrast names in browsers that don't support CSS transforms, eg: IE8