Close multiple issues with one commit
This Merge Request implements a new issue_closing_pattern that allows to close multiple issues with one commit.
While i was at it i replaced the different regex patterns in the tests, so if we change the pattern in the future we can do a simple search and replace.
The Feedback Thread for this:
This is my first little merge request so i probably forgot something, but please bear with me. I'll try to fix all issues that might arise :)