Merge branch 'update-configurations' into 'master'

cache/Dockerfile

cache/configure.sh

cache/mapcache-template.xml

client/html/ed6090683ac14375de89.worker.js

client/html/index.html

client/html/prism.js

config/dem_index-dev.html

config/dem_index-ops.html

config/dem_init-db.sh

config/dem_mapcache-dev.xml

config/dem_mapcache-ops.xml

config/emg_index-dev.html

config/emg_index-ops.html

config/emg_init-db.sh

config/emg_mapcache-dev.xml

config/emg_mapcache-ops.xml

config/vhr18_index-dev.html

config/vhr18_index-ops.html

config/vhr18_init-db.sh

config/vhr18_mapcache-dev.xml