Basic rooted polymorphism
Support serialize polymorphic id
Add failing test for polymorphic with include
Test passes
Add test for complex polymorphic associations
Add test for nested included polymoprhic associations
Fix spelling mistakes
Use ActiveSupport::Notifications
ArraySerializer will include pagination if it can
Merge branch 'instrument'
Merge branch 'pagination'
Merge in my hotness
Merge into :meta instead of force set
Integrate with harness
Revert "Integrate with harness"

This reverts commit d77a2891360579d5b208eb4b71a1e183775a22a9.
Use #ids
Revert "Use #ids"

This reverts commit 834acd0a24e4257e93bd6556e2b3a91c7c5af650.
Use #ids
Fix undefined variable
Don't instrument unless configured too