*) adding hashset for file-extensions that should not be transfered
using gzip content encoding
*) doing bugfixes on old keep-alive implementation
*) doing some additional http header validation according to rfc
*) doing all persistent connection detection in separate function now
*) doing server authentication in separate function now
*) doing proxy authentication in separate function now
*) simplifying GET, POST, HEAD functions because of new introduced
functions listed above
*) adding new function to handle empty request lines (which could
occure after post requests send via a persistent connection;
this depends on the used browser)
*) adding new function to handle unknown request methods by sending
a correct error message back to the client
*) setting correct content-length when sending back error messages
to the client
*) adding new functions that must be used by all http-Handler classes
to send
- a proxy error message
- a http header
back to the client
*) adding new function: shallTransportZipped
moved here from httpc
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@243 6c8d7289-2bf4-0310-a012-ef5d649a1542