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.
Reloading of rules now properly uses the current rule file if no argument
was provided. The rule version counter also used atomic operations for the
sake of correctness.
The rule parsing is now only required for DML type statements that should
be fully parsed.
