[BUG] Spaces in notes filenames

[iandstanley]

Notes replaces all spaces with underscores in any filename supplied when it creates or imports a note. The same thing happens with notebook directory filenames.

This is to stop the new GPG key re-encryption crashing.

[iandstanley]

This has been resolved initially by recoding the notes/notebook add function to replace spaces with underscores.

[iandstanley]

I ave opened issue #17 where notes import truncates a note name with a space upon creating