Move prelude into stdlib so it's not included everywhere

include/chaiscript/chaiscript_stdlib.hpp

@@ -18,6 +18,7 @@
 #include "dispatchkit/bootstrap.hpp"
 #include "dispatchkit/bootstrap_stl.hpp"
 #include "dispatchkit/boxed_value.hpp"
+#include "language/chaiscript_prelude.chai"
 
 #ifndef CHAISCRIPT_NO_THREADS
 #include <future>
@@ -50,6 +51,8 @@ namespace chaiscript
         lib->add(chaiscript::fun([](const std::function<chaiscript::Boxed_Value ()> &t_func){ return std::async(std::launch::async, t_func);}), "async");
 #endif
 
+        lib->eval(ChaiScript_Prelude::chaiscript_prelude() /*, "standard prelude"*/ );
+
         return lib;
       }