Re-order demo-server Dockerfile for better cache utilization (#983)
Re-order demo-server Dockerfile for better cache utilization (#983)

* Move more-frequently updated resources to the end steps so Docker
  can more frequently use caches for the earlier layers.

Co-authored-by: Philip Sharp <3ba3974e96044dcde818e6310ed799abe10671d4@smugmug.com>
google/data-transfer-project,google/data-transfer-project,google/data-transfer-project,google/data-transfer-project,google/data-transfer-project