docs: sort tooltip & container options for sanity
add 'viewport' option to popover docs; #12328 erratum
add multiple triggers info to popover docs
add 'selector' option motivation to tooltip docs
add 'container' option motivation to tooltip docs
update default 'template' value in popover docs
Merge pull request #13601 from twbs/tooltip-popover-doc

Sync tooltip & popover docs
$.fn.emulateTransitionEnd now determines duration

updated transitions.js so it no longer has an arguments
it now reads transition duration and delay off of the element it was
called on and calculates the total transition time
if multiple transitions are applied to that element, it will select the
longest
updated all .emulateTransitionEnd calls

removed the arguments being passed to .emulateTransitionEnd
because they are no longer needed
Applied changes from code review
fixed variable declaration

in emulateTransitionEnd, i was declaring duration when it was already
being passed as an argument (thanks jshint)
removed whitespace that was failing jscs
fixed bug in determineTotalTransitionTime

realized that in my last change to this I removed the .splits form
duration and delay, I placed them back in
Merge branch 'transitionAutoDurations' of https://github.com/Harris-Miller/bootstrap into transitionAutoDurations