Bug fixes on popovers

[pdvorchik]

Basic maintenance work on the popovers:

• Close existing googlemaps popover when opening a new one, to prevent overlaps that make it unreadable.
• Upcoming Events popover should say "There are no notes for this event." instead of being blank if the notes field is empty.
• Upcoming Events popover should behave consistently. When toggling between rows there's different behavior depending on if you click the text, the td, or the padding. All three should behave the same way.
• Clicking out side of the upcoming events table should dismiss any open upcoming events popover. Going with close buttons instead, as that's how the map popovers work and I'd like to keep things from getting more divergent.
• Standardize min width so they look more consistent.

[meganrm]

"Upcoming Events popover should behave consistently. When toggling between rows there's different behavior depending on if you click the text, the td, or the padding. All three should behave the same way." I don't understand this.... for me the anywhere within the tr (including the text and the padding) toggles the popover... what are you seeing?

[pdvorchik]

I'm still trying to isolate the cause -- so I can't say for 100% sure thati t's the padding yet. But I'm seeing at least two different bugs here:

1. Click on one row to open up the popover. Click on a different row right above the text. If you hit the right spot it'll close the first popover but not open the second one.

2. It's possible to open multiple popovers, though I haven't figured out what exactly the failure cases are in this context.
   

I'm testing on Win10 with Chrome, FF, and Edge

[meganrm]

Ok thanks!

[pdvorchik]

Turns out it's a bug in boostrap 3...go figure. Good news is that there's a simple fix. twbs/bootstrap#16732