Merge pull request #97 from andlaus/fix_simtimer_rename_fallout

fix the fallout of the SimulatorTimer::currentTime() -> SimulatorTimer::simulationTimeElapsed() rename
sim_fibo_ad: get rid of the old parser

currently this requires my 'hacks_for_norne' branch of opm-core...
go back to incrementing the current simulation time first, then calling EclipseWriter::writeSolution()

for this not to trigger an assertation after the last time step, the
changes of OPM/opm-parser#141 are required.
sim_fibo_ad: convert to the new-style wells manager

i.e. it now uses Opm::EclipseState. This change required to re-add the
the epoch concept in some sense, but the loop variables now call it
"episode" which sounds less ethernal IMO.