Merge commit 'cfb25f6995160d1ba03da23c3a01446844f45fec' into current

* commit 'cfb25f6995160d1ba03da23c3a01446844f45fec':
  Add aria-label to docs search field
  Remove random cursor: default from pill nav (twbs#21835)
  Allow button toolbars to wrap (twbs#21826)
  fixes twbs#21567
  grunt (fixes twbs#21819)
  Add align self to navbar brand (twbs#21626)
  Rename order utilities to intended class names (twbs#21739)
  Pixel perfect navbar toggler (twbs#21821)
  Update _custom.scss imports in other builds (twbs#21825)
  Allow flex-based navs to wrap like they used to (twbs#21824)
  Remove `cursor: pointer;` (twbs#21812)