Is there a document hosting service, allowing editing the documents using only Markdown or just raw text?
- "web 2.0" interface (quick saving with a shortcut, probably Ctrl-S; also auto-saving would be great), but lightweight (Google Docs is too slow and clunky for me here),
- permanent storage (not cookie-based or lost-on-leave),
- for free,
- multiple files per user, password protected (https would be a plus),
- optional: ability to view older revisions/versions of the text would be a plus.
I've found two sites that looked very promising (for the rawtext option):
but both of them can't handle entering the "ś" character of my native language (Polish), because they intercept "AltGr+s" keyboard shortcut as a shortcut to "[S]ave file" command. So that disqualifies them as for now.