* 0 is not convertible to std::function, nullptr should be used
* std::ref(rand) is not convertible to function<int()>, used lambdas (why we dont just pass "rand" ? )
* CFunctionList needs to be constructible from nullptr
* move constructor for CMapInfo (Visual cannot generate them :( )
* #ifdefed some stuff that is not needed anymore since cmath is updated with C99 stuff
* using std::make_unique instead of our vstd implementation
CSelector:
* introduced a class in place of typedef
* Having an overloaded && || operators over sth that is convertible to bool… Wasn't a good idea after all. Purged the operators, replaced with And/Or methods (chaining-style).
* constructor that is present only when constructing from class or function (SFINAE). std::function has an implicit converting constructor from T causing ambiguities (even if the overload would cause compile error in the body)
