Clean up warnings.  Add simple blocks.
Clean up warnings.  Add simple blocks.

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