Analyse date of occurrence on AAIB reports
Merge pull request #297 from alphagov/analyse-aaib-occurrence-date

Analyse date of occurrence on AAIB reports
Lower boost value for organisations with devolved organisation_state
For organisations that are both closed and devolved, we are now returning "devolved"
as the organisation state.
This is to prevent the behaviour of having the "[Closed organisation]" flag
being added to the search index entry in frontend
We however want to keep a low search index for those devolved organisations
Merge pull request #298 from alphagov/lower-boost-for-devolved-organisations

Lower boost value for organisations with devolved organisation_state