Starting uPNP integration

[linphone] / mediastreamer2

diff --git a/mediastreamer2 b/mediastreamer2
index 2093868ac68ffe62310cd0ad20b58ffa6860d7e3..a1f113529f506aa178765cf70773db80e5768139 160000 (submodule)
--- a/mediastreamer2
+++ b/mediastreamer2
@@ -1 +1 @@
-Subproject commit 2093868ac68ffe62310cd0ad20b58ffa6860d7e3
+Subproject commit a1f113529f506aa178765cf70773db80e5768139