Survex 0.96 released

[Olly Betts]

[I've been hoping to get this out for a while, but Mark Shinwell has been
upgrading the webserver which took longer than expected]

The release version of 0.96 is now out, and if you're using an older version
I highly recommend upgrading.  Get it from the usual place:

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

All versions are there apart from RISC OS and the 286 MS-DOS version,
which should be available shortly (tomorrow I hope).

These are all the user-visible changes since 0.95 (see below for changes
since the last prerelease version):

* aven: (MS Windows version) Mark Shinwell has written a Microsoft Windows
  version of aven which is now included instead of caverot in the MS Windows
  zip file.

* cavern: attempting to *include a non-existant file used to complain:
  "In file included from example.svx:31:" / "cavern: Couldn't open data file
  'bad.svx'" - now complain "example.svx:31: Couldn't open data file
  'bad.svx'".

* cavern (RISC OS version): "is this a directory" test would never say
  "yes".

* cavern: (MSDOS and MS Windows versions) Fixed bug with handling of paths
  containing a mixture of "/" and "\".

* cavern: applied patch from Leandro to fix problem with diving and topofil
  styles.

* 3dtodxf: added "--grid" option (supplied by Leandro); output file now
  defaults to same name as input file but with a ".dxf" extension.

* 3dtodxf: can now produce an elevation view with --elevation=ANGLE option.

* caverot: (MSDOS version) cursor keys and delete had stopped working (due
  to changes in allegro graphics library) - fixed.

* caverot: (MSDOS version) Under NT, highest supported resolution is 320x200
  so default to that.

* caverot: --mode-picker option now listed by --help.

* caverot: (MSDOS version) --mode-picker now recognised anywhere on command
  line (had to be last previously).

* caverot: (MSDOS version) accents now supported; messages from Allegro
  library now internationalised.

* xcaverot: cursor keys now move the 3D centre of rotation rather than just
  the position of the survey in the window.

* xcaverot: Zoom in and out with keyboard now behaves exactly like clicking
  on buttons; Removed unused "select" button; Fixed significant memory leak.

* xcaverot: Improved responsiveness; can now load multiple .3d files from
  command line; set defaults (press DELETE) now defaults scale that which
  fits the whole survey on the screen.

For those who've been following the prerelease versions, here are the
changes since 0.96 prerelease 4:

* (MSDOS and MS Windows versions): fixed bug in message file handling
  introduced in 0.96-prerelease 1 - symptoms: messages incorrectly looked
  for in current directory, or just printing "???" and exiting.

* cavern: attempting to *include a non-existant file used to complain:
  "In file included from example.svx:31:" / "cavern: Couldn't open data file
  'bad.svx'" - now complain "example.svx:31: Couldn't open data file
  'bad.svx'".

* xcaverot: cursor keys now move the 3D centre of rotation rather than just
  the position of the survey in the window.

Cheers,
Olly