Log Message:
Some upstream patches are added based upon the following:

TigerVNC requires FLTK 1.3.0 (or later). Although it will build and work
with plain 1.3.0, to get full functionality and the best behaviour the
following patches are needed

# Export dead key information from FLTK to the apps
# http://www.fltk.org/str.php?L2599

# Notify applications of changes to the clipboard
# http://www.fltk.org/str.php?L2636

# Ability to convert a Fl_Pixmap to a Fl_RGB_Image
# http://www.fltk.org/str.php?L2659

# Support for custom cursors
# http://www.fltk.org/str.php?L2660

# Improve modality interaction with WM
# http://www.fltk.org/str.php?L2802

# Window icons
# http://www.fltk.org/str.php?L2816

# Multihead
# http://fltk.org/str.php?L2860