The stacktrace now removes leading paths from object files and common
source code prefixes. It also skips the first five frames which are always
inside the stacktrace printing code and the signal handler.
See script directory for method. The script to run in the top level
MaxScale directory is called maxscale-uncrustify.sh, which uses
another script, list-src, from the same directory (so you need to set
your PATH). The uncrustify version was 0.66.
The stacktrace generation is now a part of the maxbase library. The code
is the same code that was previously defined in gateway.cc as a part of
MaxScale.
