TauLabs/TauLabs — pull request #682 by peabody124 (2013-06-23 17:18:03+00:00)
Title: UAVObjectManager: fix crash when sending data from category

Categories when selected allowed you to click send or save which
resulted in a crash. This disables the buttons when they are when
categories are selected. This required creating a new
CategoryTreeItem class to detect this.