add command to fix developer version notes (bug 1090615)

"Fix developer version notes that were logged as reviewer comments.
The strategy is to find all reviewer comments that were authored the
developer of the app and changed them to be developer version notes for
reviewers. And check that they are the first note of the thread, to be
sure."
Well, there has to be a note. We're doing ```note.thread``` so ```note``` is inside of ```thread```.