Fix for #1840, Strip operations from results, forwards delete operations to SDKs (#1946)

* Adding a test demonstrating issue #1840.

* Fixes #1840

* Adds failing test with other use case

- That test fails on parse.com as well

* Bumps parse to 1.9.0

* exclude pg db

* Exclude pg on other test

* Adds clientSDK compatibility check for forward deletion

- Mark js1.9.0 as compatible

* Strips all operations from result

- fix for #1606

spec/Middlewares.spec.js

@@ -66,24 +66,4 @@ describe('middlewares', () => {
             });
         });
     });
-
-    it('should properly parse the SDK versions', () => {
-        let clientSDKFromVersion = middlewares.clientSDKFromVersion;
-        expect(clientSDKFromVersion('i1.1.1')).toEqual({
-            sdk: 'i',
-            version: '1.1.1'
-        });
-        expect(clientSDKFromVersion('i1')).toEqual({
-            sdk: 'i',
-            version: '1'
-        });
-        expect(clientSDKFromVersion('apple-tv1.13.0')).toEqual({
-            sdk: 'apple-tv',
-            version: '1.13.0'
-        });
-        expect(clientSDKFromVersion('js1.9.0')).toEqual({
-            sdk: 'js',
-            version: '1.9.0'
-        });
-    })
 });