[IMP] gamification: usability and shit

Challenge
- 'Reward as soon as every goal is reached' box checked by default (most of the time people want this behaviour, few special cases were do not)
- Click on challenge kanban opens goal list instead of challenge form
- Add button 'Start Challenge' clicking on statusbar is not intuitive

Badge
- When creates a challenge from badge view, set by default badge to 'For Every Succeding User' field