Fixed authentication not working when using proxy

Fixed authentication not working when using proxy
Changed redirector to be more dynamic and handle new redirectors
Changed proxy cgi to support one new redirector and allways use the default one
Added recent changes to core 11
Changed clamd.conf file to handle streams up to 50M and not using the default value
Started building squidclamav redirector to scan for viruses when using the proxy(builded blackbox may lead to errors), core11 must be installed