add cause release fields

assets/javascripts/discourse/connectors/category-custom-settings/donations_category_settings.hbs

@@ -23,4 +23,14 @@
     <label>{{i18n 'discourse_donations.cause.maintainers.setting_label'}}</label>
     {{input value=category.custom_fields.donations_maintainers_label}}
   </section>
+
+  <section class='field'>
+    <label>{{i18n 'discourse_donations.cause.release_latest.label'}}</label>
+    {{input value=category.custom_fields.donations_release_latest}}
+  </section>
+
+  <section class='field'>
+    <label>{{i18n 'discourse_donations.cause.release_oldest.label'}}</label>
+    {{input value=category.custom_fields.donations_release_oldest}}
+  </section>
 {{/if}}

assets/javascripts/discourse/widgets/donations-category-header-widget.js.es6

@@ -2,6 +2,7 @@ import { createWidget } from 'discourse/widgets/widget';
 import { h } from 'virtual-dom';
 import { avatarFor }  from 'discourse/widgets/post';
 import { userPath } from "discourse/lib/url";
+import { iconNode } from "discourse-common/lib/icon-library";
 
 function donationDisplay(amount, type) {
   return h(`div.donations-${type}`, [
@@ -68,6 +69,44 @@ createWidget('category-header-widget', {
         );
       }
 
+      if (category.donations_release_oldest) {
+        let releaseArray = category.donations_release_oldest.split('/');
+        let label = releaseArray[releaseArray.length - 1];
+        metadata.push(
+          h('div.donations-release-oldest', [
+            h('span', '>'),
+            this.attach('link', {
+              href: category.donations_release_oldest,
+              icon: 'tag',
+              rawLabel: label,
+              omitSpan: true,
+              attributes: {
+                target: '_blank'
+              }
+            })
+          ])
+        )
+      }
+
+      if (category.donations_release_latest) {
+        let releaseArray = category.donations_release_latest.split('/');
+        let label = releaseArray[releaseArray.length - 1];
+        metadata.push(
+          h('div.donations-release-latest', [
+            h('span', '<'),
+            this.attach('link', {
+              href: category.donations_release_latest,
+              icon: 'tag',
+              rawLabel: label,
+              omitSpan: true,
+              attributes: {
+                target: '_blank'
+              }
+            })
+          ])
+        )
+      }
+
       if (metadata.length) {
         contents.push(h('div.donations-category-metadata', metadata));
       }