LUDOC-76 license: change Whamcloud to Intel

LUDOC-76 license: change Whamcloud to Intel

Change references in the manual from Whamcloud over to Intel in
both the license cover page as well as within the manual.

Update URLs for package downloads to reference the release download
title page instead of the top-level wiki page.

Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Change-Id: I8d0926881a140e3e76202dc442037366046b6469
Reviewed-on: http://review.whamcloud.com/4497
Tested-by: Hudson
Reviewed-by: Richard Henwood <richard.henwood@intel.com>