[#2378] Allow for overriding getIdentity() and getReferences() in
CustomTable
Merge pull request #2377 from svenjacobs/master

[#2374] INSERT .. RETURNING always returns null for dynamically created tables - Canonical implementation contributed by Steven Jacobs
[#2374] INSERT .. RETURNING always returns null for dynamically created
tables - Reverted incorrect fix
[#2372] Add aliases for arithmetic operators to be able to use
Groovy default operator overloading
[#2374] INSERT .. RETURNING always returns null for dynamically created
tables - Added an integration test