CBQE-1532: create a doc loader script

Change-Id: I8ba1c9d29942ba8a1c68eeb2a90629d60be51436
Reviewed-on: http://review.couchbase.org/29055
Reviewed-by: Ketaki Gangal <ketakigangal@gmail.com>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>