Squashed commit of the following (merge from mysql-trunk-wl8117):

commit 6b4996707d40351688e7b7a70f8eeb88a6d93dc6
Merge: 4ad98ba8db7 2be83d49e1d
Author: Vasil Dimov <vasil.dimov@oracle.com>
Date:   Tue May 9 10:32:06 2017 +0300

    Merge remote-tracking branch 'myrepo/mysql-trunk' into mysql-trunk-wl8117

    * myrepo/mysql-trunk:
      WL#9344: Logging services: error messages
      Bug#25814637 MIGRATE MISC MTR TESTS FROM LATIN1 TO UTF8MB4 PATCH#3

... 11483 lines, 903 commits removed ...

commit 51dc6ecd5a83c1d412ddc3ed1127141d9a361ba5
Merge: 63ac5621728 50b53025f5d
Author: Krunal Bauskar krunal.bauskar@oracle.com <>
Date:   Mon Nov 3 08:16:20 2014 +0530

    - WL#8117: merge from mysql-trunk