Udapte auto generated configuration and make files and fix several compile time warning from squidclamav.c. Also fix an error message wrongly displayed at squidclamav.conf fd close time. Add MALWARE_FOUND icap template that will be displayed by Squid when a malware is found instead of redirecting to the CGI (when redirect is not defined). Tested squidclamav with c-icap 0.3.2