Updated RDiscount, added footnotes and other extensions

Gemfile

@@ -3,7 +3,7 @@ source "http://rubygems.org"
 group :development do
   gem 'rake', '~> 0.9'
   gem 'jekyll', '~> 0.12'
-  gem 'rdiscount', '~> 1.6.8'
+  gem 'rdiscount', '~> 2.0.7'
   gem 'pygments.rb', '~> 0.3.4'
   gem 'RedCloth', '~> 4.2.9'
   gem 'haml', '~> 3.1.7'

_config.yml

@@ -34,6 +34,13 @@ plugins: plugins
 code_dir: downloads/code
 category_dir: blog/categories
 markdown: rdiscount
+rdiscount:
+  extensions:
+    - autolink
+    - footnotes
+    - generate_toc
+    - superscript
+    - smart
 pygments: false # default python pygments have been replaced by pygments.rb
 
 paginate: 10          # Posts per page on the blog index