* Update gssdp to 0.12.2, gupnp to 0.18.4 and gupnp-igd to 0.2.2
* Update build to latest standards

	new file:   libs_network/libgupnp/gssdp-0.12.2-pkgconfigdir.patch.xz
	new file:   libs_network/libgupnp/gupnp-0.18.4-pkgconfigdir.patch.xz
	new file:   libs_network/libgupnp/gupnp-igd-0.2.2-pkgconfigdir.patch.xz
	modified:   libs_network/libgupnp/libgupnp.build