added transport type as a yaml parameter
changed reliable to tcpnodelay
changed back from tcpnodelay to reliable
Merge pull request #2 from jmaye/feature/use_udp_connection

use udp or tcp as subscriber connection type
Merge branch 'master' of github.com:jmaye/velodyne-post-ros into feature/subscribe_only_when_subscribers_are_around
added transport type also when re-subscribing