secretly stringify in dav.js so we can keep using our undocumented feature
secretly stringify in dav.js so we can keep using our undocumented feature

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