c++03 -> c++11 switch:

- use std versions of function, bind and ref
- OVERRIDE -> override
- NULL -> nullptr
- use std versions of random distributions

NOTE: this may be last revision that supports gcc-4.5

lib/VCMI_Lib.cpp

@@ -28,7 +28,7 @@
 #include "filesystem/CResourceLoader.h"
 #include "CConsoleHandler.h"
 
-LibClasses * VLC = NULL;
+LibClasses * VLC = nullptr;
 
 DLL_LINKAGE void preinitDLL(CConsoleHandler *Console)
 {