Added in fix for those still on Ruby 1.8. I now detect the version of Ruby and use the appropriate method on the line.
Merge pull request #144 from jsatk/facebookifttt_fix

Added in fix for those still on Ruby 1.8. I now detect the version of Ru...
Merge commit '7bb7a5444c0df4e944694f6ac14d80e8afd023e3'