Vine update brings new tools and channels, videos still six seconds long

Vine's offering up the latest update to the iOS version of the video sharing app. Nope, it's not an Instagram-inspired lengthening. Instead, version 1.3 brings a handful of new tools to the micro-video service, assuring that you make the best six second film possible, including grid, focus and ghost. The app's also adding 15 new content channels like music, nature and comedy, each of which has its own distinct theme and Popular feed. Revining, meanwhile, makes it easier to share friends' videos ...