• support exiftool.exe and exiftool.pl for dist-exiftool (#246) thanks to @mika-fischer
• logform support (winstonjs library) (#337) thanks to @mfds
• implement --public-packages. thanks to @szaffarano for idea
• support object spread. update acorn, add a test for object spread
• rename 'permissive' to 'public' to align with cli opt
• support tiny-worker. fixes #334