[ui] Show edit and refresh links in source page

ckanext/harvest/public/ckanext/harvest/style.css

@@ -13,3 +13,12 @@
 .harvester-title{
     font-weight: bold;
 }
+
+#harvest-source-actions {
+    margin-bottom: 10px;
+}
+
+#harvest-source-actions img{
+    vertical-align: middle;
+    margin: 0 5px;
+}

ckanext/harvest/templates/source/read.html

@@ -13,6 +13,9 @@
   <div class="harvest-content">
   <py:if test="c.source">
   <h1>Harvest Source Details</h1>
+  <div id="harvest-source-actions">
+    <img src="/ckanext/harvest/images/icons/source_edit.png" alt="Edit" /><a href="/harvest/edit/${c.source.id}">Edit source</a> |
+    <img src="/ckanext/harvest/images/icons/source_refresh.png" alt="Refresh" /><a href="/harvest/refresh/${c.source.id}">Refresh source</a></div>
     <table id="harvest-source-details">
         <tr>
             <th>ID</th>