- removed all instances of bzero in favor of memset
- added memset call following all instances of malloc
- adjusted all sizeof which operate on vars of fixed-size or
pointers to vars of fixed-size to use var name (or *var name for ptrs)
instead of data type definition
- removed unnecessary replay_object struct in favor of void*
- fixed lack of lsa malloc in one section (else) of conditional
block in set_router_lsa() by moving the malloc and other common
initialization code to outside the conditional block