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Chess engine UCI: Zahak 5.0 (Windows, Linux and Mac)

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Zahak - UCI chess engine written in Go. 
Author: Amanj Sherwany  Rating JCER=2943 (180 place)

v.5.0
SEE pruning in normal search
LMR and pruning tweaks
Re-doing move history heuristic
Adding evaluation terms for Bishop pair
Adding evaluation terms for Knight outposts
New and improved time management
Re-implemented mobility/aggressivity, so that different types of pieces are treated differently
Pawnhash
Fixing various bugs in search



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