Fix raw token formatting

Fix loading global config via run function

Fix matching 'anything' type token in MQTT

Add more advanced cookie behaviour

Fix fancy traceback when comments in yaml files contain special chara…

…cters

Allow specifying custom SSL certificates in HTTP requests

Fix typetoken validation and correctly unsubscribe from MQTT topics a…

…fter a stage

Fix 'only' keyword

Allow referenced stages to be included from global configuration files

Fix selection of tests when using run() function interface

This used pytests's -k flag when we actually wanted to change collection of tests, not collecting all tests then selecting by name