rename glyr-related -> pragha-glyr
glyr: make callbacks static
glyr: hide some details
free GtkUIManagers
drop unneeded ref from GtkActionGroups
glyr: hide menu implementation
fix build without totem-plparser

issue #52
glyr: fix free()
Fix compilation without libxfce4ui
Highlight the headers on library view.
No insensitive albumart_in_osd toggle button when change show sytray option.
Port albumart_in_osd option to PraghaPreferences
Port show action in osd option to PraghaPrererences.
TODO: Port osd_in_systray or remove them? libnotify 0.7 was released two years ago.
Remove osd_in_systray option.
Port use_cddb option to PraghaPreferences
Port get_album_art to PraghaPreferences renamed to download_album_art.
Port use_mpris2 option to PraghaPreferences.
Port show_icon_tray to PraghaPreferences
Port close_to_tray to PraghaPreferences
Port controls below option to PraghaPreferences