v0.3.0

Major changes

• Update youtube-dl, ffmpeg and mpv to latest versions
• Speedup render of internal player
• Ignore GPU blacklist by default
• Workaround for Ubuntu 16.04 ffmpeg
• Compatibility with old versions of ffmpeg
• Allow to enter/edit metadata title
• Allow to edit output path in input field
• Support Ctrl+C in output log area
• Correctly display sliders when multiple tabs are opened
• Preview feature (note: currently isn't scaled to target resolution)
• A lot of other UI and bug fixes