[css4-background] Add not-yet-ready notice.

Author: tabatkins

css4-background/Overview.html

@@ -11,12 +11,12 @@
   <meta content="CSS Backgrounds and Borders Module Level 4"
    name=dcterms.title>
   <meta content=text name=dcterms.type>
-  <meta content=2012-10-12 name=dcterms.issued>
+  <meta content=2012-10-28 name=dcterms.issued>
   <meta content="Bert Bos" name=dcterms.creator>
   <meta content="Elika J. Etemad" name=dcterms.creator>
   <meta content="Brad Kemper" name=dcterms.creator>
   <meta content=W3C name=dcterms.publisher>
-  <meta content="http://www.w3.org/TR/2012/ED-css3-background-20121012/"
+  <meta content="http://www.w3.org/TR/2012/ED-css3-background-20121028/"
    name=dcterms.identifier>
   <link href="../default.css" rel=stylesheet type="text/css">
   <style type="text/css">
@@ -35,13 +35,13 @@
 
    <h1>CSS Backgrounds and Borders Module Level 4</h1>
 
-   <h2 class="no-num no-toc" id=longstatus-date>Editor's Draft 12 October
+   <h2 class="no-num no-toc" id=longstatus-date>Editor's Draft 28 October
     2012</h2>
 
    <dl>
     <dt>This version:
 
-    <dd><!-- <a href="http://www.w3.org/TR/2012/CR-css3-background-20121012">http://www.w3.org/TR/2012/ED-css3-background-20121012/</a> -->
+    <dd><!-- <a href="http://www.w3.org/TR/2012/CR-css3-background-20121028">http://www.w3.org/TR/2012/ED-css3-background-20121028/</a> -->
      <a
      href="http://dev.w3.org/csswg/css3-background">http://dev.w3.org/csswg/css3-background</a>
 
@@ -85,7 +85,14 @@ <h2 class="no-num no-toc" id=longstatus-date>Editor's Draft 12 October
    <!--end-copyright-->
    <hr title="Separator for header">
   </div>
-
+  <details class=obsolete open=open> <summary>Not Ready For
+  Implementation</summary>
+  <p> This spec is not yet ready for implementation. It exists in this
+   repository to record the ideas and promote discussion.
+
+  <p> Before attempting to implement this spec, please contact the CSSWG at
+   www-style@w3.org.
+  </details>
   <h2 class="no-num no-toc" id=abstract> Abstract</h2>
 
   <p>CSS is a language for describing the rendering of structured documents

css4-background/Overview.src.html

@@ -46,6 +46,19 @@ <h2 class="no-num no-toc">[LONGSTATUS] [DATE]</h2>
 
 
 
+<details class=obsolete open>
+  <summary>Not Ready For Implementation</summary>
+  <p>
+    This spec is not yet ready for implementation.
+    It exists in this repository to record the ideas and promote discussion.
+    
+  <p>
+    Before attempting to implement this spec,
+    please contact the CSSWG at www-style@w3.org.
+</details>
+
+
+
 <h2 class="no-num no-toc" id="abstract">
 Abstract</h2>