* Reproduction for #1567
* Recursive handling of nested pointer keys in select
* Better support for multi-level nested keys
* Adds support for selecting columns natively (mongo)
* Support for postgres column selections
* Filter-out empty keys for pg
* Move ACL transforming into Parse Server
For the database adapters, it will be more performant and easier to work with _rperm and _wperm than with the ACL object. This way we can type it as an array and so on, and once we have stronger validations in Parse Server, we can type it as an array containing strings of length < x, which will be much much better in sql databases.
* Use destructuring
* Add unique indexing
* Add unique indexing for username/email
* WIP
* Finish unique indexes
* Notes on how to upgrade to 2.3.0 safely
* index on unique-indexes: c454180 Revert "Log objects rather than JSON stringified objects (#1922)"
* reconfigure username/email tests
* Start dealing with test shittyness
* Remove tests for files that we are removing
* most tests passing
* fix failing test
* Make specific server config for tests async
* Fix more tests
* fix more tests
* Fix another test
* fix more tests
* Fix email validation
* move some stuff around
* Destroy server to ensure all connections are gone
* Fix broken cloud code
* Save callback to variable
* no need to delete non existant cloud
* undo
* Fix all tests where connections are left open after server closes.
* Fix issues caused by missing gridstore adapter
* Update guide for 2.3.0 and fix final tests
* use strict
* don't use features that won't work in node 4
* Fix syntax error
* Fix typos
* Add duplicate finding command
* Update 2.3.0.md
