master_discovery_fkie: added some error catches to solve problems with removing of interfaces
node_manager_fkie: cancel buttons redesined, some titles renamed
node_manager_fkie: the list of packages in the run dialog is now returned as signal
node_manager_fkie: do not wait in the discovery loop at at shutdown
node_manager_fkie: added features to launch file view

* Search for packages
* rename files
* copy files
node_manager_fkie: fix the removing of local master at startup
node_manager_fkie: select the topics and services of a node while tab change and not while node selection. This reduce the cpu load.