Refining functionality for opening images.
Fixing issues with propagating events.
Fixing problem where legend gradient was not showing up in Chrome.
Fixing bug where y axis label would overlap values when values were large.
Adding variable label to legend
Adjusting legend position and fixing problem with legend label when resizing.
Undoing testing changes to PIM generation script.
Merge branch 'master' into parameter-image-model
First pass at adding legend to CCA.
Making cca legend resize, respond to color and variable events.
Adding label to cca legend.