Updates to website after the removal of sub-series.

An orderingFunction needed to be added to each ordered axis where the desired order was greatest to smallest.  This is because the default order of an axis was updated to be the natural, ascending order of values on the axis.
Updated website after changing default Series sort order to be descending.
Removed an unnecessary ordering function.
Merge pull request #147 from niksoper/gh-pages-dev

Updates to website after the removal of sub-series.