Don't use espeakSSML when synthesizing text as this causes problems for some text.

android/jni/jni/eSpeakService.cpp

@@ -324,8 +324,8 @@ JNICALL Java_com_reecedunn_espeak_SpeechSynthesis_nativeSynthesize(
 
   espeak_SetSynthCallback(SynthCallback);
   const espeak_ERROR result = espeak_Synth(c_text, strlen(c_text), 0,  // position
-               POS_CHARACTER, 0,  // end position (0 means no end position)
-               espeakCHARS_UTF8 | espeakSSML, // use or ignore xml tags
+               POS_CHARACTER, 0, // end position (0 means no end position)
+               espeakCHARS_UTF8, // text is UTF-8 encoded
                &unique_identifier, nat);
   espeak_Synchronize();
 

android/jni/jni/espeakengine.cpp

@@ -583,7 +583,7 @@ tts_result TtsEngine::synthesizeText(const char *text, int8_t *buffer, size_t bu
 
   espeak_Synth(text, strlen(text), 0, // position
                      POS_CHARACTER, 0, // end position (0 means no end position)
-                     espeakCHARS_UTF8 | espeakSSML, // use or ignore xml tags
+                     espeakCHARS_UTF8, // text is UTF-8 encoded
                      &unique_identifier, userdata);
   espeak_Synchronize();