AI 147297: Update Android 1.5 SDK Download, Release Notes, Version Notes, Highlights

  Please let me know if you have other "known issues", "resolved issues", or
  "highlights".
  Also, note that the installing and upgrading docs are being updated in
  a different CL, so the new version is not displayed on my staging server.
  BUG=1790234

Automated import of CL 147297