CarveWright Designer 6.000.00041
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Compiling a board that uses a roughing bit is several times faster, a
right-click off the board no longer freezes the view, and four crashes are
fixed.

Improved
--------
* Compiling is much faster on any board that uses a roughing bit.  The
  roughing pass was testing the fit of the bit far more finely than the bit can
  actually cut -- at 512 units per inch a quarter-inch bit covers 128 cells,
  and neighbouring positions were being worked out from scratch even though
  they overlap almost entirely.  On a 16 x 7 inch alligator the roughing pass
  went from 202 seconds to 3, and the whole compile from 252 seconds to 51.
  The toolpath is unchanged: the compiled result is identical, cell for cell.

* Designer uses less memory while you work.  Two blocks of pattern data were
  being left behind on every redraw of a text or vector carving.

Fixed
-----
* Right-clicking anywhere off the board left the board unclickable and
  impossible to rotate until the window was clicked away from and back.

* Closing the line art preview while More Detail Here was still tracing could
  crash Designer.  A re-trace takes tens of seconds on the server, and the two
  buttons most likely to be pressed in that time both close the dialog.

* Designer could crash while closing, if the credits readout in the ribbon had
  a request outstanding at the time.

* Dragging a shape could crash Designer when one of its segments could not be
  built -- the segment is now left out instead of being carried as an empty
  one.  Zero-length segments, which a drawing can legitimately contain, are
  the common case.

* A memory card whose mount point could not be read was then treated as a card
  mounted at an empty path -- for the rest of the session, even after the card
  was removed and replaced.  Free space and file paths were wrong for it.  A
  card that has only just been inserted is also recognised straight away
  instead of waiting for the next scan.