* Drop --disable-gtk2-dependency and the patch for
gtk/native/Makefile.am: gtk-update-icon-cache is no longer used at
build time and as a result the option was removed.
* Add dependency to libepoxy
* Add dependency to virtual/mesa for wayland-egl
* Package new binaries gtk3-icon-browser and gtk-encode-symbolic-svg
* Add a backported patch that allows server side window decorations
in all cases
* RRECOMMEND adwaita-icon-theme-symbolic: GTK+ widgets expect a
symbolic theme to be installed
Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>