schacon/showoff — pull request #174 by matschaffer (2012-03-09 15:13:26+00:00)
Title: Avoid trying to load images from FS root.

Without this change I get errors like:

Magick::ImageMagickError - unable to open file `/controllers/mvc.png' @ error/png.c/ReadPNGImage/3628:
/Users/mat/code/showoff/lib/showoff.rb:278:in `ping'
/Users/mat/code/showoff/lib/showoff.rb:278:in `get_image_size'