fixed issue: require return empty object instead of undefined if module name is wrong
fixed issue: require return empty object instead of undefined if module name is wrong

appcelerator/titanium_mobile_tizen,appcelerator/titanium_mobile_tizen,appcelerator/titanium_mobile_tizen,appcelerator/titanium_mobile_tizen,appcelerator/titanium_mobile_tizen,appcelerator/titanium_mobile_tizen