[1064332] Horizontal size of the dashboard's left panel gets stuck after changing verticle panel size
When we removed the borders from the dash columns it made it very difficult
to grab anything for horizontal (i.e. width) resize.  There was only a
small, invisible area at the '+' shaped intersections of portlets.

Add back a 1px border, but make it transparent to keep the patternfly l+f.
Although the border can't be see, now when hovering over the border the
resize icon appears more readily.
[1043099] Add new autogroup chart to dashboard shows empty chart in dashboard
Disable the ability to add Autogroup or Autocluster metric graphs to the
dashboard.  It doesn't work because the portlets don't support them, and
these types of implicit groups should not be referenced outside of their
Tree navigation context. Despite being persisted they are maintained only
at click-time.