Switched to using extruders for colour parameters.
Switched to using two GUI canvases, one for the search term list and another for the url tree. (This will break all the presets but I'll re-add them manually).
Added a sphere node.
Added some sexy text alignment that takes the node size into consideration.
Cleaned up.
Merge branch 'master' of https://github.com/CLOUDS-Interactive-Documentary/WebHistory
Post-merge cleanup.
Added a line width param.