Introduced the UCI_AnalyseMode option, and made the evaluation function

symmetrical in analyse mode.

No functional change when playing games.

src/ucioption.cpp

@@ -130,6 +130,7 @@ namespace {
     o["MultiPV"] = Option(1, 1, 500);
     o["UCI_ShowCurrLine"] = Option(false);
     o["UCI_Chess960"] = Option(false);
+    o["UCI_AnalyseMode"] = Option(false);
 
     // Any option should know its name so to be easily printed
     for (Options::iterator it = o.begin(); it != o.end(); ++it)