The Text-To-Speech-For-Everyone release

• The yaml files support a language field, specifying the default language
  for the text-to-speech feature.
• The speak section of the yaml file can have subsections with differing
  languge settings, to allow multi-language files.
• The text-to-speech feature will use either pico2wave or espeak, depending on
  what is available.
• The windows release zipfile now comes with espeak and oggenc, so Windows users
  can use text-to-speech out of the box.