[moduleutil] Print and throw error if something went wrong while checking the module version

See merge request !613

Fix/include heat capacity in enthalpy for other gases

See merge request !608

Fix/include heat capacity in enthalpy for air

See merge request !611

Nitrogen already had a heat capacity function, however, it was calculated differently for the other gases.

Part II: reference solutions

Part I: code

Revert "Merge branch 'fix/includeHeatCapacityInEnthalpyForAir' into 'master'"

See merge request !610

This reverts merge request !607

[components][air] Use gasHeatCapacity from respective function and not hard-coded

See merge request !607

Merge branch 'feature/make-runtest-executable' into 'master'

See merge request !605

[test] make runtest.py executable

See merge request !604

(cherry picked from commit fe45cd56)

1eeac329 [test] make runtest.py executable

[components][air] Fix heat capacity

See merge request !601

Gas heat capacity was wrong by 3 orders of magnitude

[2pnc] fix calculation of enthalpy

See merge request !585

So far, no enthalpy has been calculated in the 2pnc(ni) model.


(cherry picked from commit a1109fbe)

Fix/tutorial for dune24

See merge request !579

[cmake] Add a build_tutorials convenience target to build all tutorials

See merge request !561

[bin] improve documentation of extract script

See merge request !558

Feature/dumux course corrections

See merge request !559