More tests
More tests for related property. Related array always contains ids.
Check related data when saving
Add similar() for fetching related Yamb objects
Add cache for related yamb objects
Remove whitespace strings from related
id is false if yamb object not saved
Check title/preview/text for whitespace.
Merge slug with uri
Now you can clear tags
Remove related link if yamb deleted
Update deps
Fix tests
Bump version