Added custom Slack message reporting, to equalize it with the other Garp projects.
Added custom Slack message reporting, to equalize it with the other Garp projects.

grrr-amsterdam/golem,grrr-amsterdam/golem,grrr-amsterdam/golem,grrr-amsterdam/golem,grrr-amsterdam/golem,grrr-amsterdam/golem,grrr-amsterdam/golem,grrr-amsterdam/golem