Use websocketpp's logging framework
Use websocketpp's logging framework

all messages are now reproduced between stdout and the dfhack console,
and begin with [WEBFORT] for easy grepping.

Alloyed/df-webfort,tourn/df-webfort,Ankoku/df-webfort,tourn/df-webfort,tourn/df-webfort,Alloyed/df-webfort,Ankoku/df-webfort,tourn/df-webfort,Ankoku/df-webfort,Alloyed/df-webfort,Ankoku/df-webfort,Alloyed/df-webfort