twitter/bootstrap — pull request #2474 by Murtnowski (2012-03-08 23:32:29+00:00)
Title: Resolved Issue #2043

Added variable focusshow which defaults to false

When focusshow is true, it makes it so when you gain focus on typeahead it causes the menu to show up.

I added a focus listener to catch when the typeahead gains focus
I added a method called showmenu when will show then menu when typeahead gains focus