+ support ROS_LOG_DIR
* do not reinitialize multicast socket when static host was not reachable
+ info and warn messages w.r.t. static hosts
+ ~sync_nodes parameter: sync *only* these nodes from remotes (whitelist). if ~sync_nodes is used, the ~ignore_nodes parameter is ignored
Merge pull request #1 from mjschuster/ros_log_dir_support

+ support ROS_LOG_DIR
Merge pull request #2 from mjschuster/static_hosts

* do not reinitialize multicast socket when static host could not be reached
Merge pull request #3 from mjschuster/sync_nodes

+ ~sync_nodes parameter: sync *only* these nodes from remotes (whitelist...