Third Candidate Release for 5.0

See https://hibernate.atlassian.net/projects/HHH/versions/20350 for the complete change list. The main changes since CR2 include:

Minor changes to the caching SPI

Essentially passing Session along to the various region access strategy methods to allow integrating with non-JDBC transactions.

Work on schema tooling

Improved namespace (catalog/schema) support overall in schema tools. Improved handling of views and synonyms for migrating and validating.

Work on bytecode enhancement

Lots of fixes based on feedback.

Consistency in Transaction API

A few changes were made to the JDCB-based TransactionCoordinator to work more like in JTA environments. Specifically:

• implemented support for marking the Transaction for rollback-only.
• transaction is now rolled back automatically on a failed commit.

Work on the documentation

Besides updating the content, the content has been split into 3 separate guides:

• User Guide
• Domain Model Mapping Guide
• Integrations Guide