Fix DDC-2252
Fix arithmetic priority
adding some more doc and examples for lifecycle event listeners and subscribers
cleanup event subscriber note
Fixed typos
Merge pull request #644 from pborreli/typos

Fixed typos
Merge pull request #618 from FabioBatSilva/DDC-2188

[DDC-2188] Fix arithmetic priority
Merge pull request #621 from dbu/event-subscribers

[doc] adding some more doc and examples for lifecycle event listeners and subscribers
Document Parenthesis BC break.
Merge pull request #616 from FabioBatSilva/DDC-2252

[DDC-2252] Fix delete many-to-many composite key
Fix parenthesis example