Add revokeSessionOnPasswordReset option. Closes #1584 (#1597)

* Add revokeSessionOnPasswordReset option

* Fix nits

spec/helper.js

@@ -40,7 +40,7 @@ var defaultConfiguration = {
     myoauth: {
       module: path.resolve(__dirname, "myoauth") // relative path as it's run from src
     }
-  }
+  },
 };
 
 // Set up a default API server for testing with default configuration.
@@ -54,7 +54,7 @@ delete defaultConfiguration.cloud;
 
 var currentConfiguration;
 // Allows testing specific configurations of Parse Server
-var setServerConfiguration = configuration => {
+const setServerConfiguration = configuration => {
   // the configuration hasn't changed
   if (configuration === currentConfiguration) {
     return;