DeltaQ.RTB - Update 9

Stats:

• Current line count: 6,045
• Tests: 89
• TODOs: 8

Significant polishing of the fanotify integration and handling of mount points. Fixed a bunch of issues there, and got some good advice from the linux-fsdevel mailing list that helped get the code into a state that consistently returns paths for all of the desired event types.

Created a tool DeltaQ.RTB.FileActivityTrace, whose existence is really to facilitate testing & development.