emberjs-addons/ember-bootstrap — pull request #92 by pangratz (2013-08-19 15:23:41+00:00)
Title: Add flag to ModalPane which allows to hide close button

By setting the `showCloseButton` flag on a ModalPane to `false`, the close
button is hidden. It is hereby possible to create an unclosable ModalPane
which can be used to indicate ongoing activity, like "your're being logged in
..."