miniupnpd: Make all manufacturer info configurable
testupnpdescgen.c: minor fix on getifaddr()
miniupnpc.c: MX cannot be 0
typo fix
update .gitignore
update Changelog.txt :)
Makefile: add pcpserver.o
getifaddr: more portable code (works with old OpenBSD)
remove C++ style comments
pcpserver.c: small code simplification