CBQE-1546: add indexes list check

Change-Id: I37ee8a44a844fd7c3520e441fdbc35f9ea11a39d
Reviewed-on: http://review.couchbase.org/29892
Reviewed-by: Ketaki Gangal <ketakigangal@gmail.com>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>