The creation of a TextToSpeech object causes the TTS service to
start, and the initialization listener to be called when the
service is connected. But the listener is never called when
the service binding failed to be notified of this error.
The fix consists in checking the result of the bind to service
operation, and notify the listener in case of an error.
More log was added in case speak() and synthesizeToFile() are
called but the service is not known to have started.
Change-Id: I7dcc1fa44be31fee3177ec6215fca3306377b934
1e13a02320