- added bzero after sending packet mallocs
- added merge_nlist to add all non-dup items from second list to the
first and return first
- added remove_all_from_nlist for consistency as wrapper for cast of
nlist into remove_all_from_list
- added DBDESC packet retransmit event and added it for all DBDESC
packets sent by master
- added LSR retransmit event
- added LSU retransmit event
- added send_lsr, send_lsu, send_lsack functions
- added lsu_lsa_list to ospf_neighbor, this list keeps track of LSAs for
which we are waiting for an ack
- added process_lsr function
- added process_lsack function
- added process_lsu function
- updated add_lsa and set_router_lsa to update tv_orig value in ospf_lsa
structs
- added REPLAY_LSA_AGE_MARGIN to control the +/- amount on ls_age
adjusted/estimated origin for LSAs in order to be considered the same
lsa; useful to prevent a minor (say 1 sec) difference in LSAs
contained in reflected LSUs (which could cause an LSU storm)
- cleanup of build errors