upstream update Fix Fedora bugzilla 499692
    New Features:
    Custom Prolog. Enables Denemo to generate wider variety of music types -
        e.g. Gregorian Chant.
    Tagged Directives attached to Score, Staff, Voice, Clefs, Key signatures,
        Time signatures, Notes and Chords. Enables such things as fingering,
        fret number, Drum Clef ... to be set/edited separately.
    Print Preview Pane. Graphics can be captured from this pane to be used to
        represent elements in Denemo. Elements can be dragged in this frame and
        the drag applied to the element in Denemo - WYSIWYG comes to Denemo!
    General Edit Object action. By default right click edits any object,
        including the clef, time signature and key signature; also staff and
        score directives are editable by a right click at the start of the
        staff/score.
    Background printing to print preview window and to viewer.