Update gitignore
Basic tree tooltip
Fix radial dendrogram
Make the dendrogram type an option
Prepare the MDS worker to allow other types of methods
Add zoom/pan to dendrogram
Allow loading of arbitrarily named "pan." files
Merge branch 'master' into dendrogram
Factor out sizing of mds scatterplot
Tweak layout
Refactor dendrogram leaf attributes and fix colouring
Dendrogram mouseover leaves and branches
Merge colours up branches when children are the same colour
Redraw dendrogram on type change
Change brush highlight to red
Make it possible to capture mouse-over branches
Run the Dendrogram distance matrix calc in a web worker
Make enough vertical room for horizontal dendrogram