- Support #711: Improve commit hook so that it's possible to commit on master (or any unnumbered branch) if a number is correctly put manually. - Bug #710: SCons compilation didn't work for FSI/hyperelastic. - Bug #709: Assert was not given the right matrix to examine in ExtractSubMatrix and was triggered in some ok cases. - Bug #708: St Venant Kirchoff law was buggy (derivates were wrong following the recent addition of bulk contribution). - Support #707: Clean-up hyperelasticity and fix a sign issue. - Feature #706: now each GeomElt gets a reference to its associated RefGeomElt (quite useful in ParameterAtDof to avoid needless lookup). - Bug #704 Fibers didn't work correctly as the concept of ExtendedQuadraturePoint introduced in v15.42 was flawed (it is local to a local variational operator and shouldn't be used in any other context). - Bug #703: Nnode_ in RefFEltSpace was not correctly initialized.