mavlink/qgroundcontrol — pull request #279 by malcom2073 (2013-05-31 10:51:40+00:00)
Title: Fix for crash involving serial links not being removed from QGCToolBar

QGCToolBar was not being notified of LinkInterface's being removed, so if you added two serial links, deleted the first one, then connected with the second one, it would result in a segfault as QGCToolBar tried to access the first (now nonexistant) one.