Enable account & mailbox sync for exchange

* Now attempts folder list sync for exchange
    (goto folder list and click sync)
* Folder sync never seems to call our callback - bug in EAS side?

* Now attempts mailbox sync
    (go to an EAS mailbox and click sync)

Also:
* Cleanup start/stop/error path for IMAP/POP as well
* Small bugfix in SyncManager.java (was calling wrong callback)
* No longer trying to set mailbox read/unread count in IMAP/POP
diff --git a/src/com/android/exchange/SyncManager.java b/src/com/android/exchange/SyncManager.java
index 3252e88..86529ee 100644
--- a/src/com/android/exchange/SyncManager.java
+++ b/src/com/android/exchange/SyncManager.java
@@ -137,7 +137,7 @@
         throws RemoteException{
             IEmailServiceCallback cb = INSTANCE == null ? null: INSTANCE.mCallback;
             if (cb != null) {
-                cb.syncMailboxListStatus(mailboxId, statusCode, progress);
+                cb.syncMailboxStatus(mailboxId, statusCode, progress);
             }
         }
     };