Added possibility to specify a comment to a generated ssh key file.
Added release notes; increased version.
Changes requested by the review.
Used mk.string().
Reverted mk.string() to an ascii string because of unicode convertion problems to utf-8.
Removed unused import.
New modifications from the review.
Remove comment.
Add official mk shortcut.
Code changes requested by the review.
Increased the version.
Fixed wrong indentation.
Added release notes for this version. More test modifications.
Format test in AAA.
[#419] Added possibility to specify a comment to a generated ssh key file.