Tooltips and popovers: enable via Bootstrap

[louh]

Consider importing Bootstrap's tooltips and popovers, making them available for admin pages (and potentially other content requiring secondary explanation) - via @sleepylemur and @cedric

[cedric]

I have a note to look at adding tool tips on our general backlog:
https://github.com/mapzen/developer/projects/4

I like the idea, but would we really want both? They seem to be pretty similar to me. Either way, it does feel like we're putting copy in call-out boxes all over the place and this approach might help clean-up the interface.

[louh]

Tooltips are meant for very short amounts of text and popovers allow for more content. I can definitely see popovers as a useful element for our API key swapping work. See mapzen/documentation#309

[louh]

Related: verify if separate tooltip library is still used in developer dashboard - either replace with Bootstrap tooltips, or remove the old library

[hanbyul-here]

For Developer Dashboard : jquery-poshytip is being included because jquery-editable (plugin we are using to edit the key name inline) is depending on it. Good news is that jquery-editable also offers the version based on bootstrap instead of jquery. I will work on styleguide including tooltip and popover, then get rid of jquery poshytip from developer dashboard.

[louh]

Closed via #501