Merge pull request FriendsOfCake#645 from FriendsOfCake/cake-4.x

Cake 4.x

Merge pull request FriendsOfCake#643 from FriendsOfCake/issue-642

Add test showing deleting failure results in 400 response.

Merge branch 'master' into cake-4.x

Merge pull request FriendsOfCake#639 from Phally/v5-querylog

Adds option to control which connections to log (backport to v5/master)

Fix CS errors

Update travis config

Update installation.rst

Merge pull request FriendsOfCake#609 from FriendsOfCake/cake-37

Fix deprecation errors on Cake 3.7.

Merge pull request FriendsOfCake#601 from raul338/missing-traits

Add SerializeTrait to View and Edit Actions

Merge pull request FriendsOfCake#598 from FriendsOfCake/ADmad-patch-1

Check for each class individually.