Revert "Changelog release dates fixed according to rubygems.org"

This reverts commit ae60475a.

Reason: Changelogs are not meant to be edited in docrails.

actionpack/CHANGELOG.md

@@ -149,14 +149,14 @@
 *   Assets should use the request protocol by default or default to
     relative if no request is available *Jonathan del Strother*
 
-## Rails 3.1.3 (November 20, 2011) ##
+## Rails 3.1.3 (unreleased) ##
 
 *   Fix using `tranlate` helper with a html translation which uses the `:count` option for
     pluralization.
 
     *Jon Leighton*
 
-## Rails 3.1.2 (November 18, 2011) ##
+## Rails 3.1.2 (unreleased) ##
 
 *   Fix XSS security vulnerability in the `translate` helper method. When using interpolation
     in combination with HTML-safe translations, the interpolated input would not get HTML
@@ -197,7 +197,7 @@
 
 *   Ensure users upgrading from 3.0.x to 3.1.x will properly upgrade their flash object in session (issues #3298 and #2509)
 
-## Rails 3.1.1 (October 7, 2011) ##
+## Rails 3.1.1 (unreleased) ##
 
 *   javascript_path and stylesheet_path now refer to /assets if asset pipelining
     is on. [Santiago Pastorino]

activerecord/CHANGELOG.md

@@ -153,7 +153,7 @@
 
     *Aaron Christy*
     
-## Rails 3.1.3 (November 20, 2011) ##
+## Rails 3.1.3 (unreleased) ##
 
 *   Perf fix: If we're deleting all records in an association, don't add a IN(..) clause
     to the query. *GH 3672*
@@ -166,7 +166,7 @@
 
     *Christos Zisopoulos and Kenny J*
 
-## Rails 3.1.2 (November 18, 2011) ##
+## Rails 3.1.2 (unreleased) ##
 
 *   Fix bug with PostgreSQLAdapter#indexes. When the search path has multiple schemas, spaces
     were not being stripped from the schema names after the first.

railties/CHANGELOG.md

@@ -32,7 +32,7 @@
 *   Remove old 'config.paths.app.controller' API in favor of 'config.paths["app/controller"]' API *Guillermo Iguaran*
 
 
-## Rails 3.1.2 (November 18, 2011) ##
+## Rails 3.1.2 (unreleased) ##
 
 *   Engines: don't blow up if db/seeds.rb is missing.
 
@@ -43,7 +43,7 @@
 
     *José Valim*
     
-## Rails 3.1.1 (October 7, 2011) ##
+## Rails 3.1.1 ##
 
 *   Add jquery-rails to Gemfile of plugins, test/dummy app needs it. Closes #3091. *Santiago Pastorino*