PSA: use operator overloading whenever possible

[ottne]

Operator overloading serves to make code more readable and should be used whenever a library allows it. For example:

// use overloaded assignment operator that takes a char* argument
std::string foo = "foo";
// use compare function
if(foo.compare("bar") == 0) {...}
// use operator overloading, better readabilty
if(foo == "bar") {...}

We should replace all occurences of compare with overloaded comparison operators.