remove dangling upnp port mappings, updated miniupnpc

external/miniupnpc/.gitignore

@@ -0,0 +1,25 @@
+deb_dist/
+build/
+*.o
+*.a
+*.so
+*.dll
+*.dylib
+Makefile.bak
+miniupnpcstrings.h
+pythonmodule
+pythonmodule3
+upnpc-shared
+upnpc-static
+minihttptestserver
+minixmlvalid
+testminiwget
+validateminiwget
+validateminixml
+java/miniupnpc_*.jar
+_jnaerator.*
+out.errors.txt
+jnaerator-*.jar
+miniupnpc.h.bak
+testupnpreplyparse
+validateupnpreplyparse