Merge commit 'a292fefeb77ed8e33afd7451090c3e21761fd266' * commit 'a292fefeb77ed8e33afd7451090c3e21761fd266': doc change: add SDK sizes, checksums, small changes for online SDK doc set, add layoutopt doc.
Merge commit 'a292fefeb77ed8e33afd7451090c3e21761fd266' * commit 'a292fefeb77ed8e33afd7451090c3e21761fd266': doc change: add SDK sizes, checksums, small changes for online SDK doc set, add layoutopt doc.