Bug 838110 - made pick.js testable
Bug 838110 - load list.json to get wallpaper list
Bug 838110 - Wallpaper and ringtones customization
Bug 838110 - fallback to filename when l10n of ringtone unavailable
Merge pull request #8233 from yurenju/wallpaper

Wallpaper
Bug 827130 - Feels like cannot pan page if gesture starts as blocked overscroll