Fixed GUI freezing by refactoring blocking ConsoleApp

ConsoleApp is now derived from ThreadApplication and not from
HostCommand. The latter is not allowed to block.
Conflicts:
	fog.app/src/de/tuilmenau/ics/fog/app/streamClient/StartStreamClient.java
	fog.eclipse.console/src/de/tuilmenau/ics/fog/app/console/ConsoleApp.java