stripe/stripe-ruby — pull request #166 by wsmoak (2014-09-28 13:57:31+00:00)
Title: Update minimum ruby version requirement to 1.9.2

The last version I could find that 'gem install's to ruby 1.8.7 was 1.5.22 from November 2011.

Everything after that gives:
ERROR: Error installing stripe:
rest-client requires Ruby version >= 1.9.2.