iOS: fix selectValue (update onelab)

git-svn-id: https://geuz.org/svn/gmsh/trunk@19969 59c8cabf-10d6-4a28-b43f-3936b85956c4
iOS: fix textured strings

git-svn-id: https://geuz.org/svn/gmsh/trunk@19970 59c8cabf-10d6-4a28-b43f-3936b85956c4