Implement Page#footer and display footer in frontend.

lib/gollum/frontend/public/css/screen.css

@@ -339,6 +339,11 @@ html {overflow-y: scroll;}
 
 /* Special markup considerations */
 
+.wikistyle.gollum.footer {
+  border-top: 4px solid #f0f0f0;
+  margin-top: 2em;
+}
+
 .wikistyle.gollum > h1:first-child {
   display: none;
 }

lib/gollum/frontend/templates/page.mustache

@@ -4,9 +4,14 @@
       <a href="/">Home</a> | <a href="/edit/{{name}}">Edit</a>
     </div>
     <h1>{{human_name}}</h1>
-    <div class="wikistyle gollum {{format}}">
+    <div class="content wikistyle gollum {{format}}">
       {{{content}}}
     </div>
+    {{#has_footer}}
+    <div class="footer wikistyle gollum {{footer_format}}">
+      {{{footer_content}}}
+    </div>
+    {{/has_footer}}
   </div>
 </div>
 <div class="admin">

lib/gollum/frontend/views/page.rb

@@ -1,7 +1,7 @@
 module Precious
   module Views
     class Page < Layout
-      attr_reader :content, :page
+      attr_reader :content, :page, :footer
 
       def human_name
         @page.title
@@ -23,6 +23,21 @@ module Precious
         @page.version.authored_date.strftime("%Y-%m-%d %H:%M:%S")
       end
 
+      def has_footer
+        @footer ||= @page.footer
+        !@footer.nil?
+      end
+
+      def footer_content
+        @footer ||= @page.footer
+        @footer.formatted_data
+      end
+
+      def footer_format
+        @footer ||= @page.footer
+        @footer.format.to_s
+      end
+
       def versions
         i = @page.versions.size + 1
         @page.versions.map do |v|