recordext: more definition updates

* Changes "title:main" to "title:title" to follow atlantis.cfg and
  MARC standard closer.

* NOTE reload your record configuration by truncating your records_json
  table. Unfortunately existing submissions/workflow objects may have
  problems that it is not up to date.

Signed-off-by: Jan Aage Lavik <jan.age.lavik@cern.ch>