Survex 0.95 prerelease 1 available

[Olly Betts]

I've uploaded a source-only prerelease of 0.95:

http://www.survex.com/software/test/survex-0.95-prerelease1.tar.gz

This has a huge number of changes in - mostly from the CUCC Austria Expo, plus
some others made in the UK since 0.94-prerelease2.

Changes in 0.95-prerelease1:

* cavern: *fix with error values (one for same all round, two for horizontal
  and vertical, three for x, y, z)

* Fixed RISC OS not treating "foo." as a directory

* Improved behaviour when sgmltools not installed

* cavern: Merged patches for generating .3dx files for chasm

* Miscellaneous code tidying

* Moved unresolvable issues from BUGS to ZOMBIES

* cavern: Fixed articulation code bug (handling of some cases of components
  with multiple fixed points); added regression test

* cavern: "*begin" / "*end foo" now gives more explicit error

* cavern: More work on gross error detection

* xcaverot: you can now set environmental variables XCAVEROT_FONTNAME,
  XCAVEROT_INDICATOR_RADIUS

* extend: now starts from highest station with only one leg.  If no such
  station exists then revert to the previous behaviour of starting from
  the highest station (but complain if we have no legs at all).

* cavern: line numbers now correct for .svx files with Mac style lineends

* cavern: improved error reporting in several cases

* caverot: on RISC OS now fall back to using 2 or even just one screen
  bank if we can't find a mode where we can create 3 banks [FIXME: need
  to test this works]

* cavern: added data styles "TOPOFIL" (like tape/compass/clino but with a
  counter instead of the tape), "CARTESIAN" (dx, dy, dz), and "NOSURVEY"
  (for unsurveyed connections between surveys)

* cavern: can now suppress "unused fixed point" error on a station by
  station basis by using: "*fix <station> reference <coords>"

* cavern: new command "*require <version>" to allow survey data to specify
  the minimum survex version required to process it

* print*: now search multiple print.ini files so you can override settings
  in the shipped file rather than having to modify it.  Search order is:
  ~/.survex/print.ini (unix only), $SURVEXHOME/myprint.ini,
  $SURVEXHOME/print.ini

* Changed xcaverot rotation/zoom to be the same way round as caverot

* diffpos, extend, xcaverot, caverot: Now use cmdline library to parse
  command line arguments and so support --help, --version, etc.

* hto2svx, svx2hto, and survex wrapper now all support --help and --version

* `configure --disable-aven' now disables building of aven

* caverot: on RISC OS fall back to using 2 or just 1 screen bank if there's
  not enough video memory allocated for 3.

* Documentation brought more up to date.

* If a station is only referenced once, and that reference is in a *equate
  and with an explicit prefix (e.g. "*equate 1 possibletypo.6"), a warning
  is issued.

If you try this out, please run "make check" in the build directory to run
the test suite and let me know if anything fails.

Cheers,
Olly