remove data detectors


git-svn-id: https://geuz.org/svn/gmsh/trunk@18806 59c8cabf-10d6-4a28-b43f-3936b85956c4
fix position of translate/rotate button


git-svn-id: https://geuz.org/svn/gmsh/trunk@18807 59c8cabf-10d6-4a28-b43f-3936b85956c4