Survex 1.1.1 test version uploaded

[Brian Clipstone]

I have tested Aven on Win 98 and have found that, in the ordinary view the
left mouse button does not zoom in and out as usual, but changes the
elevation. Zoom with mouse is the most useful tool. On survey rotation it is
very slow and jumpy, unless you put on the tubes view, then it speeds up.
the highlight fixed points button or view does not work.
If you put on Perspective the survey disapears from view.

Brian.