* Delete multiple empty rows
* Make getVolume non-virtual and leave just the implementation
in base class
* Resolve warning about signed / unsigned comparison in
gui-manager
* Clear availableVoices when updating voices on linux
* By default set language to transMan language on windows
(if the transMan is available)
* Remove freeVoices method from Windows ttsMan, it isn't needed
anymore
- Add comment to tts initialization on Windows
- Correctly free the voicesInfo in linux ttsMan
- Remove popState method from linux-text-to-speech.h and
windows-text-to-speech.h
- Add tts to help in configure
- Refactor language setting in gui-manager.cpp
It counted with english being the default language in
ttsMan constructors, which isn't true anymore.
Unfortunatedly the encoding used by ScummVM breaks the
speech-dispatcher, so after trying to say non-ascii character
the connection has to be restarted. So for now I am restricting
the GUI TTS to english only.
