update version and dependencies
update position of Content and Container
replace instantiations of Container with Brand
import old ContentResolver interface
remove old Cassandra Content classes
add resolveId methods to old ContentResolvers
deprecate old ContentWriter, remove EquivalenceWriting version
remove DefaultEquivalentContentResolver.java
fix CassandraEquivalenceSummaryStore
move Channel* interfaces to model, use Id not Long
update topics classes
fix tests
import TranslatorContentHasher
fix output resolvers to use Ids
restore NullContentResolver
fix translators
avoid null pointer in KeyPhraseTranslator
protect against item container id field set to null
handle float-valued attributes
use long value of Id rather than serializing