DNS

[Ueli Rutishauser <urutishauser@bigfoot.com>]

the DNS cache (new class DNS) is now integrated in the mnemnic-exp tree.

there is a new message in messages/network/mDNS.h for it.

changed files:
netmanager/netmanager.cc
netmanager/dnscache.cc
netmanager/dnscache.h
netmanger/connections/TCPConnection.cc
netmanager/Makefile.in
messages/network/mDNS.h
messages/network/mDNS.cc
messages/network/Makefile.in

there is a problem with it at the moment: the variable host is const char *
in ProtocolHandler. to pass it to DNS::gethostbyname() (via message)
it needs to be a char *.  to make it compileable, i init a new 
variable char * = const char * . that works, but it's not a clear solution.
any idea?

after some people have tested it, i integrate it into the "normal" tree.
(after a longer time it's difficult to integrate such changes...)

i going on now with work on authentication.

cu,
ueli (urutishauser@bigfoot.com)