Survex 1.0.6 released

[Olly Betts]

I've upload Survex 1.0.6.  Download from:

http://www.survex.com/download.html

The RISC OS and MS DOS machine with an 286 or earlier CPU versions haven't
been rebuilt, but I've tweaked the download page so you now get a link to the
last version to be built.

If you're wondering where 1.0.5 went, Debian Linux is about to stop allowing
non-critical uploads in preparation for a new release and I wanted to make
sure we got an up-to-date version uploaded before the freeze.  But I knew
I'd be doing some more work over the weekend, so I didn't bother to announce
it to the list.

Changes in 1.0.6:

* aven: "Reverse Controls" now works as in xcaverot and caverot.

* aven: free rotation mode (engage by pressing control while left dragging,
  exit with Delete) improved.

* aven: using File->Open when a file was already loaded caused a crash
  if a station was "grey highlighted" in the survey tree - fixed.

* aven: added hourglass for "find" operation.

* aven: reenabled loading of files by drag-and-drop (accidentally disabled
  in 1.0.4 and 1.0.5).

* aven: improved handling of flat surveys (e.g. output of extend, surveys
  with no clino information).

* aven: surveys with stations but no legs no longer cause the labels and
  crosses buttons to behave oddly.

* aven: removed quite a bit of unused and superfluous code.

* Spell-checked documentation.

Changes in 1.0.5:

* Fixed bug in img_open_survey() which could cause a crash if you tried to
  open an unrecognised file (i.e. not .3d, .pos, .plt, or .xyz format).

* North and East were the wrong way round when reading in .plt files.

* cad3d: Improved .plt file output a little - there's probably enough file
  structure for Compass to read them now.

* Documentation updates.

Cheers,
Olly