'gist' liquid tag by @stereobooster. Fixes #463.

lib/jekyll/tags/gist.rb

@@ -0,0 +1,19 @@
+# Gist Liquid Tag
+#
+# Example:
+#    {% gist 1234567 %}
+
+module Jekyll
+  class GistTag < Liquid::Tag
+    def initialize(tag_name, gist, tokens)
+      super
+      @gist = gist
+    end
+
+    def render(context)
+      "<script src=\"http://gist.github.com/#{@gist}.js\" type=\"text/javascript\"></script>"
+    end
+  end
+end
+
+Liquid::Template.register_tag('gist', Jekyll::GistTag)