fixed update server bug with scatter plot...
fixed update server bug with scatter plot...

tested on server. This may have indentation tab/spaces mix since I did it all in ipython notebook to test on the server... and copy pasted from there.... There is still some redundant canvas info that appears on the labels that needs removing but this is not top priority.
edinburghlivinglab/dds-notebooks,edinburghlivinglab/dds-notebooks,edinburghlivinglab/dds-notebooks