Add an official image for Traefik

Signed-off-by: Emile Vauge <[email protected]>

library/traefik

@@ -0,0 +1,5 @@
+# maintainer: Emile Vauge <[email protected]> (@emilevauge)
+# maintainer: Vincent Demeester <[email protected]> (@vdemeester)
+
+v1.0.0-beta.392: git://github.com/containous/traefik-library-image@7f7b1e2c7d8ca00ae07e37e64a0e305f7422f6aa
+latest: git://github.com/containous/traefik-library-image@7f7b1e2c7d8ca00ae07e37e64a0e305f7422f6aa