am 8591872a: am 92b03085: 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

* commit '8591872a5c37754aa3be3ef575d3de667f8ee70c':
  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