request #7588: Have a dedicated log file for different event queues

So that we do not clutter /var/log/tuleap/codendi_syslog with default +
fts + tv3_tv5_migration system event logging information.

/var/log/tuleap/codendi_syslog
/var/log/tuleap/fts_syslog
/var/log/tuleap/tv3_tv5_migration_syslog

Please note that the tv3_to_tv5.log has been renamed to
tv3_tv5_migration_syslog (note to integratos: should be mentionned in
changelog)

Change-Id: I5bc29593abdc28fef0207e731e3b174ba0b5c253
Merge commit 'refs/changes/77/3177/3' of ssh://gerrit.tuleap.net:29418/tuleap into HEAD

* ssh://gerrit.tuleap.net:29418/tuleap:
  request #7588: Have a dedicated log file for different event queues

Change-Id: Ie60c1e06ab79f3b477df49e6386615b74a927e1b
This is Tuleap 7.6.99.37

Change-Id: I153ad20f6c9458abcd454c2cf8de9b11395ba935