More extensive operator== logic on EntryIterator
More extensive operator== logic on EntryIterator

May or may not fix https://github.com/rug-compling/dact/issues/22

rug-compling/alpinocorpus,rug-compling/alpinocorpus,rug-compling/alpinocorpus,evdmade01/alpinocorpus,evdmade01/alpinocorpus