* updated FFmpeg to 3.0.1
* now in the "Once" mode playing a video is paused on the last frame.
* fixed the behavior of pause/unpause when a clip fading.
* MAC: fixed issues related to a sound.
* fixed the single resync a/v after a few second from a begin of playing.
* more accurate timing between the last frame and the first frame in the loop.
* now always starts to play by double-clicking on a clip in a playlist.
* fixed crashes and wrong behavior after saving the project with "SolidColor" in a playlist.
* added "no-cache" option for network sources.
* Windows: some style tuning for HiDPI displays.