v0.7.87 - Bug fixes. jQuery UI upgrade.Styling tweaks.

* [0.7.85] - Bug fix: Login screen now shows an error message if you
enter an incorrect username / password combination.
* [0.7.86] - jQuery UI library upgrade. Styling tweaks on bottom left
control pane on playback mode.
* [0.7.87] - Bug fix: Fixed close button rendering issues on jQuery UI
dialogs. Now no longer have to inject a close button into them. This was
caused by including jQuery UI before Bootstrap.