Myrddin 0.96 release

[JVMerlino]

Myrddin v0.96 has been released. The estimated improvement is about 80 elo, which should result in about 3280 CCRL.

https://github.com/JVMerlino/Myrddin

- Improved Neural Network (many thanks to Andres Valverde for his exhaustive testing of Cerebrum!)
- Restored SMP support (many thanks to Martin Sedlák for his Myracle GUI and testing!)
- Added Improving heuristic
- Added SEE pruning in the main search
- Fixed a bug in SEE calculation that could score a winning capture as equal
- Somewhat more aggressive futility pruning
- The "reuse" xboard feature is now supported

jm