When nestled things get stuck

• swap between multiple LTN proposals easily
• LTN boundary selection is now faster, has simpler colors, has a freehand lasso tool, and includes blocks near roads w
  ithout sidewalks
• quickly create multiple modal filters by freehand drawing
• core geometry fixes: remedy some lane center lines that explode at sharp angles
• upgrade window management dependencies; if you experience new problems, please report