Added coord op parameters 8730-31, coord op method 8731, vert datums 5172-5185, vertCRS 5774-5787, tfm 5415-5431. Added origin description and remarks to datums 5101 5105 5109 5117 5127-29 5132 5138. Scope revised for datums 5127-28. Name for vertCRS 5730 amended from "European Vertical Reference System 2000" to "EVRF2000".