mileszs/wicked_pdf — pull request #121 by d3vkit (2012-07-12 17:11:46+00:00)
Title: Rescue for older versions of rails < 2.3.4

Rails 2.3.4 and below doesn't have the required active_support/
core_ext/object/blank, but rather just core_ext/blank. This checks
for that to allow older rails to use the gem.