implement amendment signing

app/views/location_releases/_location_release.html.erb

@@ -30,6 +30,15 @@
     <td>
     <%= location_release.signed_on %>
   </td>
+  <td class="text-center">
+    <% if location_release.amendment_signed? %>
+      <i class="fa fa-check-square-o text-dark"
+         data-toggle="tooltip"
+         title="<%= t '.messages.amendment_signed_tooltip' %>"></i>
+    <% else %>
+      <i class="fa fa-square-o"></i>
+    <% end %>
+  </td>
 
   <td class="text-right">
     <div class="btn-group">
@@ -44,6 +53,9 @@
         <% if policy(location_release).edit_photos? %>
           <%= link_to fa_icon("picture-o fw", text: "Photos"), [:edit, location_release, :photos], class: "dropdown-item" %>
         <% end %>
+        <% if policy(location_release).sign_amendment? && location_release.amendment_signable? && !location_release.amendment_signed? %>
+          <%= link_to fa_icon("file-text fw", text: t('.actions.sign_amendment')), [:new, location_release.project.account, location_release.project, location_release.contract_template, location_release, :amendment], class: "dropdown-item", target: "_blank" %>
+        <% end %>
         <% if policy(Contract).show? && (location_release.contract.attached? || location_release.contract_template.present?) %>
           <%= link_to fa_icon("download fw", text: "Download"), [location_release, :contracts, format: "pdf"], class: "dropdown-item", target: "_blank" %>
         <% end %>

app/views/location_releases/index.html.erb

@@ -32,8 +32,8 @@
         <th><%= t(".table_headers.address") %>
         <th><%= t(".table_headers.notes") %></th>
         <th><%= t(".table_headers.tags") %></th>
-         <th><%= t(".table_headers.signed_at") %></th>
-
+        <th><%= t(".table_headers.signed_at") %></th>
+        <th></th>
         <th></th>
       </tr>
     </thead>