Update to latest version of libtextsecure for simplified interface.

1) Switch to new TextSecureAddress addressing, rather than mixing
   long-based recipient IDs into libtextsecure.

2) Get rid of RecipientFormattingException throws in calls to
   RecipientFactory.

Closes #2570

src/org/thoughtcrime/securesms/ReceiveKeyActivity.java

@@ -136,10 +136,9 @@ public class ReceiveKeyActivity extends BaseActivity {
   }
 
   private boolean isTrusted(IdentityKey identityKey) {
-    long             recipientId      = recipient.getRecipientId();
     IdentityKeyStore identityKeyStore = new TextSecureIdentityKeyStore(this, masterSecret);
 
-    return identityKeyStore.isTrustedIdentity(recipientId, identityKey);
+    return identityKeyStore.isTrustedIdentity(recipient.getNumber(), identityKey);
   }
 
   private void initializeKey()