Bumped version to 0.12

Author: pablohoffman

docs/_templates/page.html

@@ -3,10 +3,11 @@
 <div class="deck">
 
     <div class="docversion">
-    {% if version == "0.11" %}
+    {% if version == "0.13" %}
         <p class="devdoc">
         This document is for Scrapy's development version, which can be
         significantly different from previous releases. Get old docs here:
+        <a href="http://doc.scrapy.org/0.12/{{ pagename }}{{ file_suffix }}">0.12</a>,
         <a href="http://doc.scrapy.org/0.10/{{ pagename }}{{ file_suffix }}">0.10</a>,
         <a href="http://doc.scrapy.org/0.9/{{ pagename }}{{ file_suffix }}">0.9</a>.
         <a href="http://doc.scrapy.org/0.8/{{ pagename }}{{ file_suffix }}">0.8</a>.

scrapy/__init__.py

@@ -2,8 +2,8 @@
 Scrapy - a screen scraping framework written in Python
 """
 
-version_info = (0, 11, 0)
-__version__ = "0.11.0"
+version_info = (0, 12, 0)
+__version__ = "0.12.0"
 
 import sys, os, warnings