don't pass the eclipsewriter to the simulator anymore

i.e., the simulator does not deal with any output operations
anymore. This makes sense because report steps are handled by
Opm::TimeMap and the constructor for the simulator already needs more
arguments than appropriate even without this...
Merge pull request #106 from andlaus/sim_fibo_ad_remove_outputwriter_from_simulator

don't pass the eclipsewriter to the simulator anymore