Merge pull request #416 from slok/slok/helm-scrape-interval

deploy/kubernetes/helm/sloth/Chart.yaml

deploy/kubernetes/helm/sloth/templates/pod-monitor.yaml

.../helm/sloth/tests/testdata/output/pod_monitor_custom.yaml

deploy/kubernetes/helm/sloth/tests/values_test.go

deploy/kubernetes/helm/sloth/values.yaml

deploy/kubernetes/raw/sloth-with-common-plugins.yaml

deploy/kubernetes/raw/sloth.yaml