Use e.target instead :focus selector.
Removed double parentheses from expressions
Merge pull request #14836 from lipis/double

Removed double parentheses from expressions
Add min-height: 0% to .table-responsive; Fixes #14837
add role="button" to a couple more dummy-anchor btns
Don't fire show event if show is prevented because other element is still transitioning

Fixes #14844.
Closes #14845.
grunt
Merge pull request #14838 from twbs/ie9-bizarre-table-hover-bug

Add min-height: 0% to .table-responsive; fixes #14837
Replace the unicode ellipsis symbol with 3 dots.

[ci skip]
Update JSZip to v2.4.0.

[ci skip]
Update Holder.js to v2.4.1.

[ci skip]
Run `grunt`.

[ci skip]
Added/removed blank lines in the docs for consitency
Sorted various lines using atom/sort-lines
Merge pull request #14841 from twbs/role-button

add role="button" to a couple more dummy-anchor btns
Merge pull request #14830 from lipis/sort

Sorted various lines using atom/sort-lines
Merge pull request #14794 from twbs/docs-libs

Update customizer libraries
Merge pull request #14829 from lipis/blank-lines

Added/removed blank lines in the docs for consitency
Add `aria-pressed` to single toggle buttons

also includes tiny fix/clarification to two existing unit tests for the
.active class, adding data-toggle=“button” explicitly to the tested
buttons

Closes #14819.
grunt