middleman/middleman — pull request #520 by bhollis (2012-07-09 07:21:47+00:00)
Title: Make :automatic_image_sizes work for absolute image paths

I noticed that I'd get automatic image sizes for files in my `images` folder, but for images outside that folder that I referenced via an absolute path. This fixes that. It also adds a little warning when image sizes can't be calculated.