Adding the logging to be done in a different goroutine

Hi 
I am very new to golang. So don't know if I have done something fundamentally wrong or utter useless change with this patch 
I have made the sys logging to be done in a separate go routine thus (I think) eliminating the requirement to have a mutext on the Syslog function. 
I /think this way of logging will be useful if you a running a REST API etc so that your app code (API request) will not wait on a mutext.