Extract metadata from video, music and other files

Current version

Formula history

Mike McQuaid Use hash rockets again. (#5177)
Mike McQuaid Use Ruby 1.9+ symbol hash keys in all formulae. (#4942)
Dominyk Tiller hachoir-metadata: cleanup & audit fix
Baptiste Fontaine hachoir-metadata: use https resource urls
Baptiste Fontaine hachoir-metadata: use an https url
Nikolaus Wittenstein Add descriptions to all remaining homebrew packages
Jack Nagel Provide a method to access test fixtures
Mike McQuaid hachoir-metadata: add 1.3.3 bottle.
Laurent Arnoud hachoir-metadata 1.3.3