v0.7

New features:

• 20 new levels in a new "Arcade" set
• Several minor fixes to rabbit behaviour
• Fixes for not-registered clicks in desktop version
• Load levels from files or GitHub issues (desktop version only for now)
• Command line mode is back!
• Automated tests that all levels can be solved
• Allow solutions, authors and comments in level files
• Better documentation on creating levels
• New developer docs wiki
• Several improvements to the animation tester