Postgres adapter (#2012)

* Remove adaptiveCollection

* Remove an adaptiveCollection use

* Remove an adaptiveCollection

* make adaptiveCollection private

* Remove collection from mongoadapter

* Move schema collection usage into mongo adapter

* stop relying on mongo format for removing join tables

* reduce usage of schemaCollection

* remove uses of _collection

* Move CLP setting into mongo adapter

* remove all uses of schemaCollection

* make schemaCollection private

* remove transform from schemaCollection

* rename some stuff

* Tweak paramaters and stuff

* reorder some params

* reorder find() arguments

* finishsh touching up argument order

* Accept a database adapter as a parameter

* First passing test with postgres!

* Actually use the provided className

* index on unique-indexes: c454180 Revert "Log objects rather than JSON stringified objects (#1922)"

* Start dealing with test shittyness

* Make specific server config for tests async

* Fix email validation

* Fix broken cloud code

* Save callback to variable

* undo

* Fix tests

* Setup travis

* fix travis maybe

* try removing db user

* indentation?

* remove postgres version setting

* sudo maybe?

* use postgres username

* fix check for _PushStatus

* excludes

* remove db=mongo

* allow postgres to fail

* Fix allow failure

* postgres 9.4

* Remove mongo implementations and fix test

* Fix test leaving behind connections

.travis.yml

@@ -2,13 +2,24 @@ language: node_js
 node_js:
 - '4.3'
 - '6.1'
+services:
+  - postgresql
+addons:
+  postgresql: '9.4'
+before_script:
+  - psql -c 'create database parse_server_postgres_adapter_test_database;' -U postgres
 env:
   global:
   - COVERAGE_OPTION='./node_modules/babel-istanbul/lib/cli.js cover -x **/spec/**'
   matrix:
+  - PARSE_SERVER_TEST_DB=postgres
   - MONGODB_VERSION=2.6.11
   - MONGODB_VERSION=3.0.8
   - MONGODB_VERSION=3.2.6
+matrix:
+  fast_finish: true,
+  allow_failures:
+    - env: PARSE_SERVER_TEST_DB=postgres
 branches:
   only:
   - master