faup1090 startup and logging improvements

* If faup1090 can't start because the 10001 port is already in use it will now
exit with an exit status of 98 (EADDRINUSE).

* Emit the faup1090 version number if faup1090 is run with the --help argument.

* Make wicked sure we don't come up on any other ports that we shouldn't be on.

* Add "install" argument to faup1090 makefile makefaup1090.
BUGZID:
Merge branch 'master' of github.com:flightaware/dump1090_mr

Conflicts:
	faup1090.c