Revert the buffer overflow test until I can work out what James was doing with it.
Don't try to send a text message in response to a message we don't like; we should probably implement a NAK message instead.
Improve the text string sender a bit. We need to fix the protocol generator for this to be less sucky on the send side.
git-svn-id: https://arducopter.googlecode.com/svn/trunk@827 f9c3cf11-9bcb-44bc-f272-b75c42450872