Survex 0.99 prerelease 6 available

[Olly Betts]

This prerelease is available for all platforms except MSDOS on pre-386
machines and RISC OS (I'll try to build those next week):

http://www.survex.com/

Thanks to everyone who's been trying out the previous prereleases and
reporting problems they find.  Apologies if I'm a little slow to respond to
reports at present - they will all get dealt with, so keep up the good work.
I'm increasingly confident we'll have a stable 1.0 released in plenty of
time for Christmas.

The most notable changes are another stack of aven fixes.  We've not yet
fixed all the reported problems - please take a quick look at the TODO list
before reporting something's not been fixed.  There are also notable tweaks
to the printer drivers.

Full list of user-visible changes between 0.99-prerelease5 and
0.99-prerelease6:

* aven: fixed bogus lines caused by coordinate wrap-around; fixed
  problem in repeated zoom with [ or ]; tweaked layout and auto-sizing
  of left panel; station search now case insensitive; regexp search
  enabled; suppressed message box when wxWindows doesn't support the
  language Survex is set to use; fixed obscure crash in search
  highlighting; added "rubber band" between measured stations;
  Improved choice of menu short-cuts in translations.

* (MS Windows version): don't include plain text versions of docs; fixed
  default action for 3d files to be "Open".

* (MS DOS version): include text docs.

* cavern: more intelligent and less verbose reporting of errors in nested
  included files (inspired by GCC 3.0).

* cavern: improved reporting of syntax errors in survey data.

* print*: improved reporting of invalid scales; interpret a single
  number less than one as the scale in the obvious way (so "0.001"
  means "1:1000").

* print*: "--crosses" no longer prevents "--station-names" from working.

* print*: if running interactively, prompt for what elements to plot
  when run so MS Windows users don't have to resort to the command line.

* Improved documentation for print.ini; Other minor documentation updates.

* (Unix version) configure auto-probe for wxWindows updated to cope
  with wxWindows version 2.2.8 (still works with older versions too).

* Diving and cylpolar styles now accept dz (change in depth) rather than
  requiring absolute depths and taking the difference.

Cheers,
Olly

P.S. Wookey - this should fix the debian wxWindows detection problem.