SEARCH-359 adjunct: create a view for area containments, use in Data::Area
Merge branch 'area-view' into schema-change-2014-05

* area-view:
  SEARCH-359 adjunct: create a view for area containments, use in Data::Area
Fix link type GID in Data::Area containment loading test
Add instrument merge test.
pg_language shows *installed* languages, so it's pointless and counterproductive to only call createlang based on its return value
Set sequences on label_alias before inserting to it.