* 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
* Remove collection prefix from DB Controller
* Remove collection prefix from cache
* Revert "Remove collection prefix from cache"
This reverts commit 529d67dd617b64c69c36a8a63382456e95edcab8.
* Remove knowledge of default mongo URI from Parse Server
* Remove adaptive collection paramater from deleteFields
* Tidy up DBAdapter.js
Move object ID, token, and random string generation into their own
module, cryptoUtils.
Remove hat dependency, which was used to generate session and some other
tokens, because it used non-cryptographic random number generator.
Replace it with the cryptographically secure one. The result has the
same format (32-character hex string, 128 bits of entropy).
Remove randomstring dependency, as we already have this functionality.
Add tests.
