cherrypick Change-Id: I19d2be00c807b6cbdab357b32a7dd13f98a5433e
docs: update to adt 8.0.1;
delete ADT archive page, put a redirect in its place;
update tools release notes and sys reqs to require ant 1.8

Change-Id: Id039d81953452d8f7cefc0c4d61e7d9ead575541
diff --git a/docs/html/sdk/requirements.jd b/docs/html/sdk/requirements.jd
index a359dad..401dfe3 100644
--- a/docs/html/sdk/requirements.jd
+++ b/docs/html/sdk/requirements.jd
@@ -51,8 +51,7 @@
     <ul>
       <li><a href="http://www.oracle.com/technetwork/java/javase/downloads/index.html">JDK 5 or JDK
 6</a> (JRE alone is not sufficient)</li>
-      <li><a href="http://ant.apache.org/">Apache Ant</a> 1.6.5 or later for
-Linux and Mac, 1.7 or later for Windows</li>
+      <li><a href="http://ant.apache.org/">Apache Ant</a> 1.8 or later</li>
       <li><strong>Not</strong> compatible with Gnu Compiler for Java (gcj)</li>
     </ul>
   </li>