Implement cover functionality.
Enhance cover functionality: fix margins, show number of steps, and a kind of help text when nothing is entered yet.
Just to avoid non-ASCII in sources, express © with \u syntax.
Merge branch 'cover'
Translation update.
Oops, use the text field content rather than the output as the argument for factorize(). The output happened to work too, though.
Use red color to emphasize cover output when field is empty. Not sure if such fixed colors are bad Sailfish style.