Mac OS X Puma build 5G27

Mac OS X Puma build 5G27 is a beta of Mac OS X Puma 10.1. Besides changing the branding of this build to "10.1 (pre-release)" in the About This Mac dialog, not much has changed over the previous builds. The setup removes the "Mac OS X" on the disc on the background of the setup application. The water-splashing video played on the OOBE doesn't work, leading to a white background on the left until it becomes a static image.