Support for linking to multiple item_types / base item_types and looking them up by globally unique values. linkEnum for restricting links to particular resource uuids.
No need for separate create/update keys/rels
checkpoint
Remove validations, these are a back reference.
permission name tweaks; idea for serverDefault.
Move award and lab to submitted mixin
whitespace / textual tweaks.
Move accession to mixin.
For attached files, use attachment. Move attachement to a mixin.
Move validation to common base
lab_aliases, source_alias -> aliases mixin.
document -> attachment for attached files property.
typo
Add urls field to document.
Add conflict error information.
checkpoint