Initial commit.
Merged branches.
Fixed scatterplot obscured in Firefox.
Fixed another FF display bug.

* Text labels would appear at half of the supposed x-axis value
* Put d3 stuff infront of the jQuery stuff to speed up the
initialisation of the visualisation
Fixed another FF display bug.

* Text labels would appear at half of the supposed x-axis value
* Put d3 stuff infront of the jQuery stuff to speed up the
initialisation of the visualisation