Fix unicode decode error

https://bitbucket.org/sirex/rubygemsrecipe/issue/6/cannot-install-rubygems-020

CHANGES.rst

 Change History
 **************
 
+0.2.1 (2014-11-21)
+==================
+
+- Fix: https://bitbucket.org/sirex/rubygemsrecipe/issue/6/cannot-install-rubygems-020
+
 0.2.0 (2014-11-20)
 ==================
 

rubygems.py

@@ -12,7 +12,6 @@ import subprocess
 import zc.buildout
 
 import six.moves.urllib as urllib
-from six import text_type as str
 
 import hexagonit.recipe.download
 
@@ -122,8 +121,7 @@ class Recipe(object):
                     'rubygems-%s.zip' % self.version, self.version)
 
         f = urllib.request.urlopen('http://rubygems.org/pages/download')
-        s = f.read()
-        s = str(s)
+        s = f.read().decode('utf-8')
         f.close()
         r = re.search(r'http://production.cf.rubygems.org/rubygems/'
                       r'rubygems-([0-9.]+).zip', s)

setup.py

@@ -4,7 +4,7 @@ import os
 
 from setuptools import setup
 
-version = '0.2.0'
+version = '0.2.1'
 name = 'rubygemsrecipe'