replace FEELPP_ASSERT byg LOG_IF(WARNING,...)
@feelpp/feelpp update issue #147
introduce is ghost face for faces shared by two processes and avoiding in
integration to go twice through them. The ghostface is the face that has the
highest process id
testsuite/feeldiscr/test on_inside.cpp has a check for that
Merge branch 'develop' of https://github.com/feelpp/feelpp into develop