MistOS changelog

- Mist Version - 2.7 (Fuji)
- July Security Patch
- New HomeScreen Ui (Thanks to Superior & Everest)
- Redesign About Phone
- Added Depth Wallpaper
- Added Sound Engine
- Added Ui Style
- Enhance User Experience
- Added Mist Launcher
- Added Monet Themes
- Bugs Fixes & Performance Improvement