Survex 0.97 released!

[Olly Betts]

No problems have been reported with 0.97-prerelease7, so I've released 0.97.
The files are identical to those in prerelease7, so there's no need to
download again.

Download it from:

http://www.survex.com/

This release is available for all supported platforms.

There's way too many changes since 0.96 to produce a comprehensive list that
anyone is going to bother reading, so here's a summary of the major user
visible changes between 0.96 and 0.97:

* Now support leg and station flags - set using *flags and *entrance in
  cavern, and understood by other programs where appropriate.  Requires new
  version of 3d file format.  New programs can load old .3d files, but old
  programs can't load new .3d files.

* (MS Windows version): new installation wizard and new native Microsoft
  Windows printer driver.

* (MS DOS versions): now supply self-extracting zip archives.

* aven: ported to use wxWindows GUI toolkit.  One set of source code now
  builds both the Unix and MS Windows versions, and both have the natural
  look and feel for their platform.

* aven: many, many enhancements, some copied over to caverot and xcaverot.

* cavern: added *export command to allow scope of station names to be
  limited.  If *export is never used, behaviour is as before.

* Improved internationalisation - more messages are now translatable, and
  libraries are told to internationalise messages where possible.

* 3dtodxf: renamed to cad3d since it can now produce DXF or sketch format.

Cheers,
Olly