v3.0-r4

Add help text (issue #23)
Fix categories when creating an instance (issue #10)
Fix codechecker and moodlecheck problems (issue #21)

v3.0-r3 Important bug fix

Changelog:

• Fix bug where you could not restart a game once it had ended
• Fix some coding style problems

v3.0-r2 Improve fullscreen support and fix deprecation bugs

Changelog:

• Improve fullscreen support
• Fix debugging message when editing your quizventure instanceImprove fullscreen support

v3.0-r1 Support for Moodle 3.0

First version of Quizventure for Moodle 3.0