I know the deadline for support V2 of the Dropbox API is approaching, so I'm getting ready to upgrade our existing iOS app that depends heavily on Dropbox file sharing, but I can't see to find any documentation on this. The only related documentation I can find is for Swifty Dropbox, which I can't use. Can you point me in the direction of how to integrate Dropbox in an Obj-C iOS app? Thanks!