CB-2623: Added partial work on update script

bin/update.bat

@@ -0,0 +1,32 @@
+:: Licensed to the Apache Software Foundation (ASF) under one
+:: or more contributor license agreements.  See the NOTICE file
+:: distributed with this work for additional information
+:: regarding copyright ownership.  The ASF licenses this file
+:: to you under the Apache License, Version 2.0 (the
+:: "License"); you may not use this file except in compliance
+:: with the License.  You may obtain a copy of the License at
+:: 
+:: http://www.apache.org/licenses/LICENSE-2.0
+:: 
+:: Unless required by applicable law or agreed to in writing,
+:: software distributed under the License is distributed on an
+:: "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+:: KIND, either express or implied.  See the License for the
+:: specific language governing permissions and limitations
+:: under the License.
+
+@ECHO OFF
+IF NOT DEFINED JAVA_HOME GOTO MISSING
+FOR %%X in (java.exe javac.exe ant.bat android.bat) do (
+    SET FOUND=%%~$PATH:X
+    IF NOT DEFINED FOUND GOTO MISSING
+)
+cscript "%~dp0\update.js" %*
+GOTO END
+:MISSING
+ECHO Missing one of the following:
+ECHO JDK: http://java.oracle.com
+ECHO Android SDK: http://developer.android.com
+ECHO Apache ant: http://ant.apache.org
+EXIT /B 1
+:END