In the future, MP4Muxer & MP4Extractor should report progress.
Implemented progress indicator parsing.
Fix a bug where the progress bar wouldn't hide after finishing a job.
Unnecessary.
Implemented better progress reporting.

To be tweaked :)
Show or hide the current jobs only when the user wants it.
Apply settings without a required restart.
Style.
Prettier UI.

The jobs list doesn't need to be as big as the list of tracks.
Two buttons, one for aborting all, one for aborting one job.

Maybe I'll remove it again later.
(Hopefully) more compatible approach to the get the desired UI.
Per-pixel-scrolling is more fluid and natural.
Delete files instead of letting MP4Box overwrite them.
Sanity.
Removed the button to delete a single job.

Need a model/view approach to do that.
isEmpty() for the JobPool.
Simpler StatusWidget.
Spinning progress indicator while jobs are running.
Icons in the job list.
More gradual settings.