started with niod europeana xml
uncommented the test-jar building stuff
niod europeana import more or less finished, next stop: harvesting
Throw a runtime error if there's a missing item identifier
Exploring USHMM Solr-EAD import
Add paragraphs to scope_content and creator_bio sections
Make initialization optional when loading fixtures, and make it
require an optional --init flag on the command line.
Cleanup
Merge branch 'master' into ushmm_import_test

Conflicts:
	ehri-importers/src/main/java/eu/ehri/project/importers/IcaAtomEadImporter.java
Cache a particularly slow method...
making writing importers easier by making it more 'generic'. also, descriptions not nec. have an identifier
NAME no longer mandatory on DocumentaryUnit, but only on NamedEntities.
Cache the results of reflective methods that are called frequently
Add note about performance
Remove unneeded (and misplaced) method
Make the JSON ObjectMapper a static instance.
Allow the search list fetch to use POST for really long lists of ids
Refactor frame class hierarchy so that AccessibleEntity no longer
inherits IdentifiableEntity. This means that certain 'acessible'
types, like SystemEvents and Annotations no longer have to supply
the 'identifier' field to pass validation. The AccessibleEntity ID
generator has been renamed to IdentifiableEntityIdGenerator because
it requires the identifier field, not that something be 'accessible'
per se.
Inadvertently removed 'name' and 'identifier' from admin group in initializer
Add test for graph admin group initialization