LUDOC-11 misc: unify header and add vim footer

LUDOC-11 misc: unify header and add vim footer

Make the header sections consistent and wrapped at 80 columns.
The xmlns URLs cannot be changed to https or the markup breaks.

Add a vim footer to expand tabs into spaces for consistency.

Signed-off-by: Andreas Dilger <adilger@whamcloud.com>
Change-Id: Ib871575ba2ede8e73b35b4683abf35e5db3ebbe5
Reviewed-on: https://review.whamcloud.com/39582
Tested-by: jenkins <devops@whamcloud.com>