Feature/property select regressions

This fixes a couple of regressions with multiselect:

1. The multiselect for augmentation properties was using the wrong selector for the list
2. The property list select elements for barcharts and piecharts were mistakenly changed to divs

In addition, the barchart editor formatting was a bit screwed up. The old multiselect kind of trounced on formatting anyway, so it wasn't evident previously.