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.
Fixed all warnings that were present with -Wextra.
Take almost all warnings into use except `format-overflow` and `unused-function`. format-overflow needs to be handled in a separate commit.
Use stack allocated test class and use const char pointers for const functions. Simplify the test and improve error messages.
Added tests from develop. The test results need to be modified for 2.0.
