Better message string format for debugging
Release glock in tracker
Better log messages
Remove endless loops
Store mtime as array

Apparently there is more internal state to ruby's Time object than what
can be seen with nsec, since times that should have been matching
weren't.
Number connections for debugging
Recheck all files in integration test
Be more pure about file creation
Merge branch 'jake'
Note another issue with the protocol
Add read-only integration test
Move hasher to own module
Rename add/remove to attach/detach
Can't find ID should not be fatal