Require Ruby 2.0 or greater now.

Author: parkr

jekyll-gist.gemspec

@@ -12,6 +12,8 @@ Gem::Specification.new do |spec|
   spec.homepage      = "https://github.com/jekyll/jekyll-gist"
   spec.license       = "MIT"
 
+  spec.required_ruby_version = '>= 2.0'
+
   spec.files         = `git ls-files -z`.split("\x0")
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})