- generate list of headers for GMSH_INTERNAL_DEVELOPER_API automatically
- warn Gmsh packagers not to redistribute the internal API

changed API for creation of simple entities: the tag is now optional, and provided at the end (with default value = -1)

change signature of MEdgeVertex constructor : the optional lc arg should be last; this also fixes a bug in GeomMeshMatcher

removed gmshModelGetVertexCoordinates (not necessary) + return parametric coords in gmshModelGetMeshVertices

Fixes by amaury

See merge request gmsh/gmsh!58

Added missing include. This will fix compilation error when building with Intel 1

See merge request gmsh/gmsh!59

Fix parameter begin point on edge

See merge request gmsh/gmsh!52

Pointwise quality visualization

See merge request gmsh/gmsh!57