Multiple functions added to the MultiLine Class
Multiple functions added to the MultiLine Class

Added the focus and focus_off function
    allows to hide every lines beside a certain selection and to restore the previews state

Added the highlight and highlight off function
    allows to highlight and de-highlight certain lines. When highlighted they are displayed thicker than before

Changed the set-property function to allow the value to be a list.

AKuederle/ppm-library