New Screenshots

[Olly Betts]

I've added a couple more screenshots from code under development:

http://www.survex.com/screenshots.html#extras

I'm getting pretty close to having Survex 1.1.0 ready for people to try
out.  It's pretty much there - I'm just working through fixing niggling
problems which are often fiddly to track down.  Here's the major new
features:

* Solid passages - passage dimensions are currently inferred from
  the leg length (pretty effective as you can measure longer legs in
  larger passages).  Use of real LRUD data coming soon...
  
* Depth colouring is now continuously varying.
  
* Search moved onto the toolbar, and we now use the status bar for
  coordinates, distances, etc to make better use of screen space.
    
* Full screen mode (F11).

* Colour by survey date.

Cheers,
    Olly