read the marshalled data from the pipe

Signed-off-by: Mattias Andrée <maandree@operamail.com>
populate address remap table

Signed-off-by: Mattias Andrée <maandree@operamail.com>
unlist clients we failed to load

Signed-off-by: Mattias Andrée <maandree@operamail.com>
restart slave threads after a re-exec

Signed-off-by: Mattias Andrée <maandree@operamail.com>