imports "deleted" user with smf.ID_MEMBER = -1

post lookup for ID_MEMBER = 0 -> ID_MEMBER = -1

this solves the problem of KeyNotFound for user~0
fix db path options in index and smf-import

also update makefile with correct db name
update mysql connection limits on epoch_import

boards = 1
threads = 2 // has to do a secondary lookup for firstpost
posts = 1