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/tools-notes.jd b/docs/html/sdk/tools-notes.jd
index 9316fae..f8d7071 100644
--- a/docs/html/sdk/tools-notes.jd
+++ b/docs/html/sdk/tools-notes.jd
@@ -74,6 +74,9 @@
 designed for use with ADT 8.0.0 and later. After installing SDK Tools r8, we
 highly recommend updating your ADT Plugin to 8.0.0.</p>
 
+<p>If you are developing outside Eclipse, you must have <a href="http://ant.apache.org/">Apache
+Ant</a> 1.8 or later.</p>
+
 <p>Also note that SDK Tools r8 requires a new SDK component called
 <em>Platform-tools</em>. The new Platform-tools component lets all SDK platforms
 (Android 2.1, Android 2.2, and so on) use the same (latest) version of build