Allow single server instance in test suite (parse-community#7262)

* initial pass

* reconfigureServer when needed

* finish postgres tests

* mongo tests

* more tests

* clean up

* re-add skipped test

* Fix transaction tests

* handle batch

* AuthenticationAdapter fix

* More reconfiguration

* clean up

* properly terminate cli servers

* handle Parse.Push

* Flaky PushController

* ensure reconfigureServer when changed

* fix postgres tests

* remove console.log

* LiveQuery spec remove duplicates and listeners

Author: dplewis

package.json

@@ -46,7 +46,7 @@
     "ldapjs": "2.2.3",
     "lodash": "4.17.21",
     "lru-cache": "5.1.1",
-    "mime": "2.5.0",
+    "mime": "2.5.2",
     "mongodb": "3.6.3",
     "mustache": "4.1.0",
     "parse": "3.1.0",