Fix for Mutex::lock() returning a Result
Fix for Mutex::lock() returning a Result

tailhook/hlua,tailhook/hlua,tomaka/hlua,tailhook/hlua,rphmeier/hlua,tempbottle/hlua,tempbottle/hlua,rphmeier/hlua,tomaka/hlua,tomaka/hlua,rphmeier/hlua,tempbottle/hlua