Update EmailService implementation to include sendMail

Change-Id: Ia0a31e6156d472d5c2423ed7d5d683adc1194bb4
diff --git a/src/com/android/exchange/ExchangeService.java b/src/com/android/exchange/ExchangeService.java
index 69e5d77..a1d4139 100644
--- a/src/com/android/exchange/ExchangeService.java
+++ b/src/com/android/exchange/ExchangeService.java
@@ -524,6 +524,10 @@
             return Search.searchMessages(exchangeService, accountId, searchParams,
                     destMailboxId);
         }
+
+        @Override
+        public void sendMail(long accountId) throws RemoteException {
+        }
     };
 
     /**