Some updates to the schema
MBS-5920: area WS changes first draft
Merge branch 'master' into mbs-799
MBS-799/MBS-5920: show an area in release-event, and do it in the right order
Don't use primary_code.
new autogenned classes from mbs-799 areas branch
Merge branch 'mbs-799' of https://bitbucket.org/ianmcorvidae/mmd-schema into mbs-799
Updated to reflect removal of the primary-code attribute from area
Merge branch 'mbs-799'

* mbs-799:
  Updated to reflect removal of the primary-code attribute from area
  new autogenned classes from mbs-799 areas branch
  Don't use primary_code.
  MBS-799/MBS-5920: show an area in release-event, and do it in the right order
  MBS-5920: area WS changes first draft
  Some updates to the schema