Dashboard charts are broken

[donaldoakes]

In MDWHub the Dashboard tab is not working correctly. For example the process flow seems to only show the trend line for one process instead of all the selected processes. Here's a screenshot from mdw55 that depicts how process selection is supposed to work:
https://centurylinkcloud.github.io/mdw/docs/guides/images/screenshots/dashboard/select.png

[donaldoakes]

I plan to re-implement our Dashboard using React, so this issue may not be worthwhile to implement unless it's a relatively easy fix.