Added GeoIP support and help page

The GeoIP is based on the freegeoip.net RESTful web service API
The helppage shows you the args and an example
Create LICENSE

Signed-off-by: Igor Scheller <igor.scheller@igorshp.de>
Update traceroute.php

Signed-off-by: Igor Scheller <igor.scheller@igorshp.de>
Merge branch 'master' of https://github.com/MyIgel/php-traceroute into MyIgel-master

Conflicts:
	traceroute.php