Changed endpoint classes/_User to users (#717)

Author: Kiwifed0r

Parse/src/main/java/com/parse/ParseRESTUserCommand.java

@@ -33,7 +33,7 @@ public static ParseRESTUserCommand getCurrentUserCommand(String sessionToken) {
   public static ParseRESTUserCommand signUpUserCommand(JSONObject parameters, String sessionToken,
       boolean revocableSession) {
     return new ParseRESTUserCommand(
-        "classes/_User", ParseHttpRequest.Method.POST, parameters, sessionToken, revocableSession);
+        "users", ParseHttpRequest.Method.POST, parameters, sessionToken, revocableSession);
   }
 
   public static ParseRESTUserCommand logInUserCommand(String username, String password,

Parse/src/test/java/com/parse/ParseRESTUserCommandTest.java

@@ -86,7 +86,7 @@ public void testSignUpUserCommand() throws Exception {
     ParseRESTUserCommand command =
         ParseRESTUserCommand.signUpUserCommand(parameters, "sessionToken", true);
 
-    assertEquals("classes/_User", command.httpPath);
+    assertEquals("users", command.httpPath);
     assertEquals(ParseHttpRequest.Method.POST, command.method);
     assertEquals("value", command.jsonParameters.getString("key"));
     assertEquals("sessionToken", command.getSessionToken());