Make Jekyll play nice with Windows again post Albino + posix-spawn refactor

## 0001-albino-windows-refactor.patch
diff --git a/lib/albino.rb b/lib/albino.rb
index 387c8e9..b77d55e 100644
--- a/lib/albino.rb
+++ b/lib/albino.rb
@@ -1,4 +1,5 @@
 require 'posix-spawn'
+require 'rbconfig'

 ##
 # Wrapper for the Pygments command line tool, pygmentize.
@@ -84,11 +85,21 @@ class Albino
     proc_options[:timeout] = options.delete(:timeout) || self.class.timeout_threshold
     command = convert_options(options)
     command.unshift(bin)
-    Child.new(*(command + [proc_options.merge(:input => write_target)]))
+    if RbConfig::CONFIG['host_os'] =~ /(mingw|mswin)/
+      output = ''
+      IO.popen(command, mode='r+') do |p|
+        p.write @target
+        p.close_write
+        output = p.read.strip
+      end
+      output
+    else
+      Child.new(*(command + [proc_options.merge(:input => write_target)]))
+    end
   end

   def colorize(options = {})
-    out = execute(options).out
+    out = RbConfig::CONFIG['host_os'] =~ /(mingw|mswin)/ ? execute(options) : execute(options).out

     # markdown requires block elements on their own line
     out.sub!(%r{</pre></div>\Z}, "</pre>\n</div>")