promise return bugfix in dropbox.js
promise return bugfix in dropbox.js

untitaker/remotestorage.js,mcanthony/remotestorage.js,lewisl9029/remotestorage.js,remotestorage/remotestorage.js,theWebalyst/remotestorage.js,untitaker/remotestorage.js,remotestorage/remotestorage.js,mcanthony/remotestorage.js,remotestorage/remotestorage.js,theWebalyst/remotestorage.js,lewisl9029/remotestorage.js