Survex 1.1.5 development snapshot uploaded

[Mike McCombe]

I used cavern 1.1.5 to produce a 3d file from the following:-

*data normal from to tape compass clino 
*fix test.0 0,0,0
*begin test
0	N	1	0	0	
*end test

When I try to view this with Aven I get a quick flash of a dialog box
containing something like "Bug in program detected. Please report to the
authors". Aven then exits without waiting for me to close (or even read!)
the error message. 3dtodxf also seems to exit prematurely without creating a
dxf file.

Mike