Merge branch 'master' into faster_cavity_reshape

CHANGELOG.txt

CMakeLists.txt

CREDITS.txt

Common/CMakeLists.txt

Common/CommandLine.cpp

Common/Context.h

Common/CreateFile.cpp

Common/DefaultOptions.h

Common/GmshConfig.h.in

Common/GmshDefines.h

Common/GmshMessage.cpp

Common/OS.cpp

Common/OctreeInternals.cpp

Common/OpenFile.cpp

Common/Options.cpp

Common/Options.h

Common/libol1.c

Common/libol1.h

Common/robin_hood.h

Fltk/helpWindow.cpp