fixed the fix for issue #229: both Content-Type _and_ Content-Length headers should only be sent when there's a body allowed. (Not so for a HTTP 304 response, for example.)
fixed the fix for issue #229: both Content-Type _and_ Content-Length headers should only be sent when there's a body allowed. (Not so for a HTTP 304 response, for example.)

GerHobbelt/civet-webserver,commshare/civet-webserver,commshare/civet-webserver,GerHobbelt/civet-webserver,commshare/civet-webserver,commshare/civet-webserver,commshare/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,commshare/civet-webserver,GerHobbelt/civet-webserver,GerHobbelt/civet-webserver,commshare/civet-webserver