cleanup DSQR mess

Common/Context.cpp

Common/OpenFile.cpp

Common/SmoothData.cpp

Fltk/GUI.cpp

Fltk/Opengl_Window.cpp

Geo/GFace.cpp

Geo/Geo.cpp

Geo/GeoInterpolation.cpp

Geo/MElement.cpp

Geo/gmshEdge.cpp

Graphics/Draw.cpp

Makefile

Mesh/DivideAndConquer.cpp

Mesh/HighOrder.cpp

Mesh/meshGEdge.cpp

Mesh/meshGFaceTransfinite.cpp

Numeric/NumericEmbedded.cpp

Numeric/NumericEmbedded.h

Numeric/gsl_brent.cpp

Parser/Gmsh.l