Remove bindHeight directive

- The directive was a hack to get the subscription window fit to it's
  content. With the current version of Angular and angular-ui-bootstrap
  (1.3.8, 0.12.0) it only breaks the layout.
Fix event listener not being removed in Brige

- This is a regression introduced by
  686ee0ed70a0ff0e513ec187637424696617257a. Since the listener is wrapped,
  remove won't work since it's called with the un-wrapped listener