removed imports from project since they are imported via OSGi
refactored launcher logging output

Launcher is now using the logger from the simulation is a simulation is
started. If no simulation is active, it uses the root logger. This
ensures that error messages from the launcher appears in the log of the
simulation.
packet statistic is now done in the context of a simulation

That enables the separation of two parallel simulations. More important,
it allows the statistic files to be written with the prefix of the
simulation.
refactored logging and simulation observer

Simulation observer are now informed about the creation of a simulation.
That enables the log observer to register earlier than before. Thus, the
log files contain the output done during the setup.
fixed deadlock on init/setup exception

The thread, which is waiting for the end of the simulation
is now started directly after creation. That fixes deadlock situations,
which occur if exceptions terminate the init/setup process and skip the
call of the start method.
added check/clean routines for connected graphs to importer
Merge branch 'master' of https://github.com/ICS-TU-Ilmenau/fog