git-svn-id: https://geuz.org/svn/gmsh/trunk@19960 59c8cabf-10d6-4a28-b43f-3936b85956c4
Removed deprecated "forced" tag on nodes in mesh optimizers. Replaced "weightFixed"/"weightFree" by "weight" in high-order mesh optimizer and mesh quality optimizer.  

git-svn-id: https://geuz.org/svn/gmsh/trunk@19961 59c8cabf-10d6-4a28-b43f-3936b85956c4