[cleanup] deprecation warnings and errors

exercises/exercise-basic/2p2cmain.cc

exercises/exercise-basic/2pmain.cc

exercises/exercise-basic/injection2p2cproblem.hh

exercises/exercise-basic/injection2pproblem.hh

exercises/exercise-biomineralization/biominproblem.hh

exercises/exercise-biomineralization/fluidsystems/biomin.hh

exercises/exercise-biomineralization/main.cc

...s/exercise-coupling-ff-pm/interface/freeflowsubproblem.hh

...ercise-coupling-ff-pm/interface/porousmediumsubproblem.hh

...ises/exercise-coupling-ff-pm/models/freeflowsubproblem.hh

exercises/exercise-coupling-ff-pm/models/main.cc

.../exercise-coupling-ff-pm/models/porousmediumsubproblem.hh

.../exercise-coupling-ff-pm/turbulence/freeflowsubproblem.hh

exercises/exercise-coupling-ff-pm/turbulence/main.cc

...rcise-coupling-ff-pm/turbulence/porousmediumsubproblem.hh

exercises/exercise-fluidsystem/2p2cproblem.hh

exercises/exercise-fluidsystem/2pproblem.hh

exercises/exercise-fluidsystem/main.cc

exercises/exercise-fractures/fractureproblem.hh

exercises/exercise-fractures/main.cc