add forked rickshaw.css from glasnt/rickshaw

branch - yaxis-stroke
change - fix stroke shadow on yaxis text labels
remove min version rickshaw - no longer required
Update d3 to version 3 fork from glasnt/d3

Update from version 2, add 24-hour time fix from branch d3_24-hour-time
remove unrequired file - using version 3 now
update to forked version from glasnt/cubism

use version from branch axis_24-hour-time to change ruler to show 24-hour time
Update readme - point to forked versions of things