Indexer update to support FCO

The indexer was not indexing FCO data because there was an assumption
that ever project had a valid status.  FCO data has no status.
ElasticSearch query sanitising

Elasticsearch breaks when people use special characters etc.
Removed - from query sanitiser

This is needed for porject code look up so should not have been reomved
Merge branch 'master' of https://github.com/DFID/aid-platform-beta into 248-Add-Contextual-Explanations
Update more information text for 'top five things we do' on the home page and 'Benefiting Country/Region' on the country page