Removed node selector and improved chart configuration (#143)

charts/nextcloud/Chart.lock

charts/nextcloud/Chart.yaml

charts/nextcloud/README.md

charts/nextcloud/charts/mariadb-0.2.0.tgz

charts/nextcloud/charts/mariadb-0.2.2.tgz

charts/nextcloud/charts/postgres-0.2.0.tgz

charts/nextcloud/charts/postgres-0.2.3.tgz

charts/nextcloud/charts/redis-0.2.0.tgz

charts/nextcloud/charts/redis-0.2.2.tgz

charts/nextcloud/templates/cronjobs.yaml

charts/nextcloud/templates/defaultcronjobs.yaml

charts/nextcloud/templates/deployment.yaml

charts/nextcloud/templates/service.yaml

charts/nextcloud/values.yaml