v0.13.1

.gtui format 10 (reads v1..v10). Crate 0.13.1.

Fixed

• An edge between point nodes now leaves them in the direction its from_side asks for. Point nodes
  have no port cell, so the plain L-shaped fallback used to ignore the declared side and picked
  "east then south" whenever the next node in the chain suggested a horizontal approach. In
  examples/fun/dynasties.gtui that made 南宋 -> 元 run east along 北宋 -> 南宋's row, so the two
  edges overlapped and read as one line from 北宋 to 元; it now drops out of 南宋 downward and
  comes into 元 from the west. uk-dynasties.gtui loses a row of overlapping strokes the same way.

• A manual waypoint (via) that makes the edge double back on the row or column it just
  travelled is now skipped instead of drawn: such a point only adds a spur that ends in
  mid-air. hub -> leaf15 in examples/limits/star40.gtui used to come down to the shared
  channel and climb back up, leaving a │ tail under the leaf's ╯; the elbow now reads
  ╯ and the tail is gone. Waypoints that make progress are untouched, and no other
  example changes.