Release v2.1

using only necessary parts of AWS SDK, redid email code, removed all
KHDX references, other minor fixes

src/com/amazonaws/AbortedException.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2013-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License").
+ * You may not use this file except in compliance with the License.
+ * A copy of the License is located at
+ *
+ *  http://aws.amazon.com/apache2.0
+ *
+ * or in the "license" file accompanying this file. This file 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.
+ */
+package com.amazonaws;
+
+/**
+ * SDK operation aborted exception.
+ */
+public class AbortedException extends SdkClientException {
+    private static final long serialVersionUID = 1L;
+
+    public AbortedException(String message, Throwable t) {
+        super(message, t);
+    }
+
+    public AbortedException(Throwable t) {
+        super("", t);
+    }
+
+    public AbortedException(String message) {
+        super(message);
+    }
+
+    public AbortedException() {
+        super("");
+    }
+
+    /**
+     * {@inheritDoc}
+     * An aborted exception is not intended to be retried.
+     */
+    @Override
+    public boolean isRetryable() {
+        return false;
+    }
+}

src/com/amazonaws/AmazonClientException.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright 2010-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License").
+ * You may not use this file except in compliance with the License.
+ * A copy of the License is located at
+ * 
+ *  http://aws.amazon.com/apache2.0
+ * 
+ * or in the "license" file accompanying this file. This file 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.
+ */
+package com.amazonaws;
+
+import com.amazonaws.annotation.SdkInternalApi;
+
+/**
+ * Base exception class for any errors that occur while attempting to use an AWS
+ * client from AWS SDK for Java to make service calls to Amazon Web Services.
+ *
+ * Error responses from services will be handled as AmazonServiceExceptions.
+ * This class is primarily for errors that occur when unable to get a response
+ * from a service, or when the client is unable to parse the response from a
+ * service. For example, if a caller tries to use a client to make a service
+ * call, but no network connection is present, an AmazonClientException will be
+ * thrown to indicate that the client wasn't able to successfully make the
+ * service call, and no information from the service is available.
+ *
+ * Note : If the SDK is able to parse the response; but doesn't recognize the
+ * error code from the service, an AmazonServiceException is thrown
+ *
+ * Callers should typically deal with exceptions through AmazonServiceException,
+ * which represent error responses returned by services. AmazonServiceException
+ * has much more information available for callers to appropriately deal with
+ * different types of errors that can occur.
+ *
+ * @see AmazonServiceException
+ */
+public class AmazonClientException extends SdkBaseException {
+    private static final long serialVersionUID = 1L;
+
+    /**
+     * Creates a new AmazonClientException with the specified message, and root
+     * cause.
+     * 
+     * @param message
+     *            An error message describing why this exception was thrown.
+     * @param t
+     *            The underlying cause of this exception.
+     */
+    public AmazonClientException(String message, Throwable t) {
+        super(message, t);
+    }
+
+    /**
+     * Creates a new AmazonClientException with the specified message.
+     * 
+     * @param message
+     *            An error message describing why this exception was thrown.
+     */
+    public AmazonClientException(String message) {
+        super(message);
+    }
+
+    public AmazonClientException(Throwable t) {
+        super(t);
+    }
+
+    /**
+     * Returns a hint as to whether it makes sense to retry upon this exception.
+     * Default is true, but subclass may override.
+     *
+     * This method is internal to the SDK. Users should not depend on this method to decide
+     * if an exception from a service should be retried.
+     */
+    @SdkInternalApi
+    public boolean isRetryable() {
+        return true;
+    }
+}