Merge branch 'chart' into 'staging'

chart/.helmignore

chart/Chart.lock

chart/Chart.yaml

chart/README.md

chart/charts/postgresql-9.7.2.tgz

chart/charts/redis-10.9.0.tgz

chart/files/index.html

chart/files/init-db.sh

chart/files/mapcache.xml

chart/files/preprocessor-config.yaml

chart/files/registrar-config.yaml

chart/templates/_helpers.tpl

chart/templates/cache-configmap.yaml

chart/templates/client-configmap.yaml

chart/templates/client-deployment.yaml

chart/templates/client-service.yaml

chart/templates/ingress.yaml

chart/templates/init-db-configmap.yaml

chart/templates/preprocessor-config-configmap.yaml

chart/templates/registrar-config-configmap.yaml