*change secs min/max values
*change QSoundPlay to QMediaPlayer with play/stop methodes
*fix wrong play/pause logics
*some refactoring
*update rus translation
*add dialog with selecting audio files from current (app) folder + windows media audio
*add model for audio file load + play
*add application info for easy using QSettings
*add clear last text on clear text file
*update transnational
*add qApp info for projects
*change wav to mp3 file
*add installer script and license file
*update funnel translation
*add next button to UI + logics
*update translation
*fix wrong converter translation
*width of MainWindow set to 1/3 of desktop
*update setup
*fix wrong save in file converter_errors.txt
*add correct interrupt conversion on close
*remove silence in last of output file