Fix saving outside multiview editor.

We now properly disable saving of a file that has not been modified.
Saving problems in a multiview editor (see issue #16) still occur.
Actually committing what I tried to commit before.

Woops, epic fail :(
Removing file that is only for multiview support.

That should be the last mistake.
I guess I must be tired...
Merge remote-tracking branch 'refs/remotes/origin/master' into fold