update portal to feature/722-expose_WebFinger_link_properties branch of remotestorage.js
update to remotestorage.js from https://github.com/remotestorage/remotestorage.js/pull/790
use not-connected event
update to remotestorage.js from https://github.com/remotestorage/remotestorage.js/commits/feature/772-expose_WebFinger_link_properties-rebase3