-fix (mostly harmless) use of uninitialized variable

git-svn-id: https://gnunet.org/svn/gnunet@33130 140774ce-b5e7-0310-ab8b-a85725594a96
-indentation, cast to avoid compiler warning

git-svn-id: https://gnunet.org/svn/gnunet@33131 140774ce-b5e7-0310-ab8b-a85725594a96
-fix compiler warning: do not return const double

git-svn-id: https://gnunet.org/svn/gnunet@33132 140774ce-b5e7-0310-ab8b-a85725594a96
-only complain about upnpc if it is actually enabled by config

git-svn-id: https://gnunet.org/svn/gnunet@33133 140774ce-b5e7-0310-ab8b-a85725594a96