Advancements with postgres (#2510)

* Start DB runner from tests

* Connect GridstoreAdapter only when needed

* removes unused package

* better test errors reporting

* Adds support for __op.Delete

* Better test error reporting

* Makes sure all tests can run without crashing

* Use xdescribe to skip test suite

* Removes unused dependencies

* Let volatiles classes be created with PG on start

* Do not fail if class dont exist

* adds index.spec.js to the pg suite

* Use a new config each test to prevent side effects

* Enable EmailVerificationToken specs with pg

* Makes sure failure output is not cut

* Reduces number of ignored tests in ParseObject.spec

* Inspect reconfiguration errors

* Mark GlobalConfig is incompatible with PG

- Problem is with nested updates (param.prop = value)

* PG: Nested JSON queries and updates

- Adds support for nested json and . operator queries
- Adds debug support for PG adapter
- Adds loglevel support in helper

* Enable working specs in ParseUser

* Sets default logLevel in tests to undefined

* Adds File type support, retores purchaseValidation specs

* Adds support for updating jsonb objects

- Restores PushController tests

* Proper implementation of deleteByQuery and ORs

- Adds ParseInstallation spec to the test suite

* xit only failing tests

* Nit on ParseAPI spec

* add sorting operator

* properly bound order keys

* reverts describe_only_db behavior

* Enables passing tests

* Adds basic support for relations, upsertOneObject aliased to createObject

* progress on queries options

* Fix ACL update related problems

* Creates relation tables on class creation

* Adds Relation tests

* remove flaky tests

* use promises instead of CB

* disable flaky test

* nits

* Fixes on schema spec

- Next thing is to implemenet geopoint and files correctly

* fix failues

* Basic GeoPoint support

* Adds support for $nearSphere/$maxDistance geopoint queries

* enable passing tests

* drop tables afterEach for PG, clean up relation tables too

* Better initialization/dropTables

spec/PushController.spec.js

@@ -130,7 +130,7 @@ describe('PushController', () => {
     done();
   });
 
-  it_exclude_dbs(['postgres'])('properly increment badges', (done) => {
+  it('properly increment badges', (done) => {
 
    var payload = {data:{
      alert: "Hello World!",
@@ -184,13 +184,13 @@ describe('PushController', () => {
    }).then((result) => {
      done();
    }, (err) => {
-     fail("should not fail");
+     jfail(err);
      done();
    });
 
   });
 
-  it_exclude_dbs(['postgres'])('properly set badges to 1', (done) => {
+  it('properly set badges to 1', (done) => {
 
    var payload = {data: {
      alert: "Hello World!",
@@ -238,7 +238,7 @@ describe('PushController', () => {
 
   });
 
-  it_exclude_dbs(['postgres'])('properly creates _PushStatus', (done) => {
+  it('properly creates _PushStatus', (done) => {
 
     var installations = [];
     while(installations.length != 10) {
@@ -318,7 +318,7 @@ describe('PushController', () => {
 
   });
 
-  it_exclude_dbs(['postgres'])('should properly report failures in _PushStatus', (done) => {
+  it('should properly report failures in _PushStatus', (done) => {
     var pushAdapter = {
      send: function(body, installations) {
        return installations.map((installation) => {
@@ -397,7 +397,7 @@ describe('PushController', () => {
     });
   });
 
-  it_exclude_dbs(['postgres'])('should support object type for alert', (done) => {
+  it('should support object type for alert', (done) => {
     var payload = {data: {
      alert: {
       'loc-key': 'hello_world',