Optimizing the performance of track_msg

I had initially written track_msg using python’s re module, but after some tests on fairly large logs (~250Mb) I realized that using inline functions like python’s string module was much more efficient the script ran reasonably fast on larger files.

I think there’s still room for improvements but I’m going to move on for now, and see if there are any bugs that I’ll run into during daily use.

The latest release is available here