Survex 1.0.20 released

[Olly Betts]

Download from the usual place:
 
http://www.survex.com/download.html

Unfortunately there are no debian packages at present - at my request,
yesterday Mark upgraded the wxWindows packages on the box I build everything on,
but something isn't right and he seems to be away for the weekend...
You'll be able to get debs from the debian servers once Wookey uploads
anyway.

I have rebuilt the versions for RISC OS and MSDOS on 286 or earlier machines.

Here's the usual summary of changes in 1.0.19:

* aven: update display when "Metric" or "Degrees" is toggled.

* cavern: fixed handling of compass and clino corrections in Compass survey
  data - these were interpreted as radians rather than degrees so the
  correction was about 57 times too large!)

* Improved handling of Compass PLT files - if the survey name is empty, don't
  insert a survey separator character.

* Documentation: fixed incorrect markup which resulted in a bogus footnote.

Cheers,
Olly