[Feature request] Sync notes via IMAP Notes

For the time being, the Notes app by Jolla is very basic and offers no syncing making its usability quite limited. One possible solution would be to use IMAP Notes, a solution used by Apple in their note apps. It is not exclusively Apple's technology, the Fastmail team is offering IMAP Notes in beta [now](http://blog.fastmail.com/2015/07/14/imap-notes-beta-service-is-here/). There is some Android support, [Thunderbird extension](https://addons.mozilla.org/cs/thunderbird/addon/ios-imap-notes/), or an independent [web app](https://imapnote.com/) allowing to use any IMAP account as note storage. Since notes are just items in a special Notes folder on IMAP, I guess the implementation is not that difficult (read access is almost trivial, one can do that with any IMAP client).