fix https://github.com/remotestorage/remotestorage.js/pull/595#discussion_r10813546
fix https://github.com/remotestorage/remotestorage.js/pull/595#discussion_r10813546

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