Stickers, stickers everywhere -- that's what'll happen once everyone on your Path friends list updates their app. The newest version for iOS and Android takes cartoony stickers out of private messaging and lets you use them on the comments section of your feed. Additionally, folks on the go can now easily add friends using QR codes the app generates -- new pals need only scan it to approve the request. If that leads to barrage of new contacts, version 3.1's improved fr
