Make Help-menu item in menubar open the wiki in the browser

Instead of displaying the ugly help window which it currently does.

Should open https://wiki.griefed.de/en/Documentation/ServerPackCreator/ServerPackCreator-Help instead.

changed milestone to %Version 3.x - Enhance!

added Enhancement label

assigned to @Griefed

See !208 (merged)

mentioned in merge request !208 (merged)

closed

mentioned in merge request !215 (merged)

added 2h of time spent