Add cron status to admin help section

[MAILPOET-1457]

assets/js/src/common/print_boolean.jsx

@@ -0,0 +1,26 @@
+import React from 'react';
+import MailPoet from 'mailpoet';
+
+const PrintBoolean = props => (
+  <span>
+    {(props.children === true && props.truthy) ||
+      (props.children === false && props.falsy) ||
+      (props.unknown)}
+  </span>
+);
+
+PrintBoolean.propTypes = {
+  truthy: React.PropTypes.string,
+  falsy: React.PropTypes.string,
+  unknown: React.PropTypes.string,
+  children: React.PropTypes.bool,
+};
+
+PrintBoolean.defaultProps = {
+  truthy: MailPoet.I18n.t('yes'),
+  falsy: MailPoet.I18n.t('no'),
+  unknown: MailPoet.I18n.t('unknown'),
+  children: null,
+};
+
+module.exports = PrintBoolean;