Add method to Listener class for Rcv_state messages

My NS-RAW doesn't produce this message. Maybe that's why I neglected to add it
Remove old program name from gitignore file
Add 'record' program that records binary messages to a Mongo database
Oops, got the filename from the wrong place
Record subframe data in a separate collection
Add indexes when we first connect to the database
The 'src' subdirectory no longer exists so don't pass it to makedepend