am aca2c4df: am 84241293: am 3a103a87: Merge change I15536f3c into eclair-sdk

Merge commit 'aca2c4dfbf0c92424cb9325976bbd9d81c16501b' into eclair-mr2-plus-aosp

* commit 'aca2c4dfbf0c92424cb9325976bbd9d81c16501b':
  doc change: Add instruction to disable antivirus before installing SDK components. Add download page link to installing doc.