Work around bug in gcc 4.6 for initializer_list
Work around bug in gcc 4.6 for initializer_list

Hopefully also fixes MSVC 2012

bradparks/ChaiScript__cplusplus_scripting_language,bradparks/ChaiScript__cplusplus_scripting_language,kamilzubair/ChaiScript,bradparks/ChaiScript__cplusplus_scripting_language,kamilzubair/ChaiScript,kamilzubair/ChaiScript