[Simh] SimH V3.9-0 released

[Bob Supnik]

Two-plus years in the making! Hundreds of bug fixes! Tens of 
improvements! Yes, it's the long-awaited V3.9-0 of SimH. Available, as 
always, at http://simh.trailing-edge.com.

Some extra goodies this time, as SimH will be transitioning from this 
form of release to a public source repository for community development:

- All unfinished/beta simulators, including the SAGE 6800, Sigma 7, 
SiCortex SC1 (MIPS), and Alpha EV-5.
- Documentation masters for all the simulators.
- Updated tools and utilities.

I am not releasing binary executables with Ethernet support. If you 
don't want to build them yourself, check out the public source 
repository (see the readme file).

Note: if you downloaded any release before today, including the 
1-May-2012 final candidate, download again, as a very last minute bug 
was fixed just today.

/Bob Supnik