* Updated the complete lwIP source to the latest lwIP CVS version 1.1.1 * src/ecos/init.c Added call to netif_set_up(netif) in function lwip_set_addr() - this is required since lwIP version 1.0.0 * cdl/lwip_net.cdl Minor modifications for UDP configuration options. Renamed CYGNUM_LWIP_TCPIP_THREAD_PRIORITY to CYGNUM_LWIP_NETWORK_THREAD_PRIORITY and moved option outside CYGPKG_LWIP_TCPIP component because the network thread needs to run in all configurations. * tests/nc_slave.c * tests/tcpecho.c * tests/udpecho.c * tests/sockets.c * tests/httpd.c Added eCos test infrastructure to tests and made tests applicable depending on lwip configuration.