joomla/joomla-cms — pull request #292 by bradp (2012-07-24 20:48:07+00:00)
Title: Optimized all images in Joomla install, some ended up being about 40% file size saved.

Optimized all images using a combination of PNGOUT, AdvPNG, Pngcrush, extended OptiPNG, JpegOptim, jpegrescan, jpegtran, and Gifsicle. Some had about 40% file size saved.