Remove property hooks for Drupal 7 Entity API contrib module.
Prevent administrators from deleting relation endpoint field to protect rendering relations useless.
Updating Relation to Drupal 8 beta2

This commit updates Relation to a point where you can CRUD relation types within
the administration interface. Other features are yet to be tested. #[1988922]

Removed relation_entity_bundle_info(). Functionality provided by EntityManager.
Removed relation_type_get_names(). Its only internal usage was made obsolete.
Renamed link/menu files to new scheme #[2302893]
Moved files from PSR-0 to PSR-4 class loader directory structure #[2246699]
Added schema for Relation Type config #[1905070]
Many other small changes.
Updating Relation to Drupal 8 beta2

This commit updates Relation to a point where you can CRUD relation types within
the administration interface. Other features are yet to be tested. #[1988922]

Removed relation_entity_bundle_info(). Functionality provided by EntityManager.
Removed relation_type_get_names(). Its only internal usage was made obsolete.
Renamed link/menu files to new scheme #[2302893]
Moved files from PSR-0 to PSR-4 class loader directory structure #[2246699]
Added schema for Relation Type config #[1905070]
Many other small changes.