switch to Maruku, avoid compiled extensions

lib/middleman/core_extensions/front_matter.rb

@@ -8,7 +8,8 @@ module Middleman::CoreExtensions::FrontMatter
       
       ::Tilt::register RDiscountTemplate, 'markdown', 'mkd', 'md'
       ::Tilt::register RedcarpetTemplate, 'markdown', 'mkd', 'md'
-      app.set :markdown_engine, RDiscountTemplate
+      ::Tilt::register MarukuTemplate, 'markdown', 'mkd', 'md'
+      app.set :markdown_engine, MarukuTemplate
       
       ::Tilt::register RedClothTemplate,  'textile'
       ::Tilt.prefer(RedClothTemplate)
@@ -86,7 +87,9 @@ module Middleman::CoreExtensions::FrontMatter
   class RedcarpetTemplate < ::Tilt::RedcarpetTemplate
     include Middleman::CoreExtensions::FrontMatter::YamlAware
   end
-  
+  class MarukuTemplate < ::Tilt::MarukuTemplate
+    include Middleman::CoreExtensions::FrontMatter::YamlAware
+  end
   class RedClothTemplate < ::Tilt::RedClothTemplate
     include Middleman::CoreExtensions::FrontMatter::YamlAware
   end

lib/middleman/features/blog.rb

@@ -1,5 +1,3 @@
-require "rdiscount"
-
 module Middleman
   module Features
     module Blog

lib/middleman/renderers/markdown.rb

@@ -1,7 +1,7 @@
 module Middleman::Renderers::Markdown
   class << self
     def registered(app)
-      app.set :markdown_engine, ::Tilt::RDiscountTemplate
+      app.set :markdown_engine, ::Tilt::MarukuTemplate
       app.after_configuration do
         ::Tilt.prefer(app.settings.markdown_engine)
       end

middleman.gemspec

@@ -20,7 +20,7 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency("thin", ["~> 1.2.11"])
   s.add_runtime_dependency("thor", ["~> 0.14.0"])
   s.add_runtime_dependency("tilt", ["~> 1.3.1"])
-  s.add_runtime_dependency("rdiscount", ["~> 1.6.8"])
+  s.add_runtime_dependency("maruku", ["~> 0.6.0"])
   s.add_runtime_dependency("sinatra", ["~> 1.2.6"])
   s.add_runtime_dependency("padrino-core", ["~> 0.10.1"])
   s.add_runtime_dependency("padrino-helpers", ["~> 0.10.1"])
@@ -29,7 +29,6 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency("slim", ["~> 0.9.0"])
   s.add_runtime_dependency("haml", ["~> 3.1.0"])
   s.add_runtime_dependency("sass", ["~> 3.1.5", '< 3.1.6'])
-  s.add_runtime_dependency("coffee-script", ["~> 2.2.0"])
   s.add_runtime_dependency("compass", ["~> 0.11.3"])
   s.add_runtime_dependency("coffee-script", ["~> 2.2.0"])
   s.add_runtime_dependency("sprockets", ["2.0.0.beta.12"])
@@ -37,7 +36,6 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency("guard", ["~> 0.5.1"])
   s.add_runtime_dependency("guard-livereload", ["~> 0.2.1"])
   s.add_development_dependency("coffee-filter", ["~> 0.1.1"])
-  # s.add_development_dependency("jquery-rails", ["~> 1.0.12"])
   s.add_development_dependency("cucumber", ["~> 1.0.2"])
   s.add_development_dependency("rake", ["0.8.7"])
   s.add_development_dependency("rspec", ["~> 2.6.0"])