Ticket #257: register ComId 100 (PD) to listen to 239.255.0.0 AND to 239.194.0.0
Ticket #256: added possibility to register one (MD) ComId to listen on several multicast addresses (done by added every ComID-Mcast combination as separate queue element)
Ticket #254: added API routines within TTI to get own operational and own train consist numbers
Ticket #255: possible correction of copying dataset TRDP_OP_TRAIN_DIR_STATE_T
Ticket #245
Fixed - #247 tau_uri2Addr() NULL check for pDNR - (also in tau_addr2Uri())
Fixed - #248 tau_uri2Addr() : check for non zero IP address while searching cache
QNX semaphore handling
Check for empty path in debugOut()