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Chess engine: Drofa 3.2 (Windows and Linux)

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Drofa - UCI chess engine (written in C++11), Author: Alexander Litov.
Rating JCER=3137
Drofa started as fork of the Shallow Blue chess engine. 

v.3.2:
Since the last release Drofa got ~100 self-play elo.

The most important changes:
Rewrite of history bonuses (now they are capped, plus other tweaks)
Added capture history
Added countermove history
Added late capture extension
Scale evaluation based on winning side pawn count
Adjust some of the extensions if null move failed
Scale evaluation for OCB + Rook / Knight endgames
Some evaluation tweaks / a couple of new eval terms
Much more agressive LMP, LMR and SEE
Retuned evaluation with Drofa data


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