Notification fix for intermediate encoding. It's incredibly hard
to get all details right. So many moving parts.
Fix issue #494 (some log info was printed once per forked process)

Since this is a core bug, the core version should be changed
in a similar way.
mssql12 will allegedly also crack SQL Server 2014 hashes.
xsha512 format will not crack OS X 10.8 or higher (those are pbkdf2-hmac-sha512).
fix typo in comment
Re-add an "if (john_main_process)" that is needed for MPI
Merge pull request #553 from frank-dittrich/bleeding-jumbo

Fix issue #494 (some log info was printed once per forked process)
Merge branch 'bleeding-jumbo' into memdbg

* bleeding-jumbo:
  Re-add an "if (john_main_process)" that is needed for MPI
  fix typo in comment
  xsha512 format will not crack OS X 10.8 or higher (those are pbkdf2-hmac-sha512).
  mssql12 will allegedly also crack SQL Server 2014 hashes.
  Fix issue #494 (some log info was printed once per forked process)
  Notification fix for intermediate encoding. It's incredibly hard to get all details right. So many moving parts.