v0.700 - Playtest opened + MAGICAL update

There's a first playtest version so that everyone can play it. And test it! ːhappy_yetiː

• I've put my hands elbow-deep into magic and made 40+ new spells for a game. Now there are 50 of them
  
• Two heroes with very different playstyles
  
• Balance in campaigns
  
• Bossfight - only one type of boss for now, and I'm not sure how balanced it is yet
  
• Bugfixes, bugfixes everywhere