1) added onClickKeyboardButton - method for keyboard input 2) added some functions: answerProcessing, shutSpeaker, closeTextInput 3) fixed saying explanation when user pressed answer button (or started to use keyboard)

1) added onClickKeyboardButton - method for keyboard input
2) added some functions: answerProcessing, shutSpeaker, closeTextInput
3) fixed saying explanation when user pressed answer button (or started to use keyboard)