headerbar implementation
fixes for markup escape issues, narrow padding, add app-menu if shell requires it and sort out play button symbol
more fixes - make headerbar buttons flat and remove secondary title display
add compact toolbar for non gnome-shell environments, installer and other fixes
description changes and make sure preferences loads for GTK 3.10 users
rework compact to be a real toolbar to ensure it picks up its correct toolbar style
some style fixes for the compact toolbar
cleanup
add current and total time for the playing entry
finish readme and correct colour usage