text window. [git-p4: depot-paths = "//depot/solvespace/": change = 2136]
And call the cubic things splines, not segments, since that's what they are now. [git-p4: depot-paths = "//depot/solvespace/": change = 2135]
preparation for rework of text window. [git-p4: depot-paths = "//depot/solvespace/": change = 2129]