Generate animated GIFs from asciinema terminal recordings

Current versions

asciinema2gif requires the following formulae to be installed:
gifsicle 1.91 GIF image/animation creator/editor
imagemagick 7.0.7-28 Tools and libraries to manipulate images in many formats
phantomjs 2.1.1 Headless WebKit scriptable with a JavaScript API

Recent formula history

ilovezfs asciinema2gif 0.5
ilovezfs asciinema2gif 0.4.1
ilovezfs asciinema2gif 0.4
Vítor Galvão asciinema2gif 0.3
Vítor Galvão asciinema2gif 0.2 (new formula)

Formula code at GitHub