Survex 0.95 prerelease 4 available

[Olly Betts]

Nope, you didn't blink.  I didn't announce prerelease 3 (Gavin Lowe quickly
found a problem which prevented it installing).

So here's prerelease 4:

http://www.survex.com/software/test/survex-0.95-prerelease4.tar.gz

Changes in 0.95-prerelease4:

* Fixed typo which prevented documentation from installing.

* Fixed logic error in "only mentioned once in *equate with explicit prefix"
  check.

Changes in 0.95-prerelease3:

* aven: updated to compile with new cvrotimg.

* More fixes for compilation problems on non-Linux UNIX platforms.

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

Cheers,
Olly