Fix displaying the error message on download failure.

android/src/com/reecedunn/espeak/eSpeakActivity.java

             if (mDownloadedVoiceData) {
             	Log.e(TAG, "Voice data check failed (error code: " + resultCode + ").");
                 setState(State.ERROR);
+                populateInformationView();
             } else {
                 downloadVoiceData();
             }