Buffed AI for BNW by glider1

[[to_xp]Gekko]

An ongoing effort to improve the AI that might be nice to merge into the CP dll : http://forums.civfanatics.com/showthread.php?t=504220

I've asked glider1 about it and he seems open to collaboration http://forums.civfanatics.com/showpost.php?p=13341438&postcount=191