Initial version of JUPnP tool.

This commit will contain a first version of a JUPnP command line tool.
It is using JCommander for args processing.

Signed-off-by: Jochen Hiller <jo.hiller@googlemail.com> (github:
@jochenhiller)
Merge pull request #2 from JochenHiller/001-jupnptool

Initial version of JUPnP tool.