Melior UI

- New UI, hide icon option. - Back to old fire bootanimation. - Updated Google Keyboard, Instagram, WhatsApp and ThemeChooser apps themes. - Minor color change in Nova Launcher settings. - New back icon in Navigation Bar. - Added Android N Notifications Panel style. - Minor change in recents FAB icon. - Some new themed apps: AICP extras, AICP OTA, One Calculator, MalMath, 5217 and Octodroid. - Themed widget of Clock app. - Improved Twitter, Settings and Solid Explorer themes.