Add a title attr to show full date on history log

lib/gollum/templates/history.mustache

@@ -33,7 +33,7 @@
             {{>author_template}}
         </td>
         <td class="commit-name">
-          <span class="time-elapsed">{{date}}:</span>&nbsp;
+          <span class="time-elapsed" title="{{date_full}}">{{date}}:</span>&nbsp;
           {{message}}
           [<a href="{{base_url}}/{{escaped_url_path}}/{{id}}" title="View commit">{{id7}}</a>]
         </td>

lib/gollum/views/history.rb

@@ -22,6 +22,7 @@ module Precious
             :date     => v.authored_date.strftime("%B %d, %Y"),
             :gravatar => Digest::MD5.hexdigest(v.author.email),
             :identicon => self._identicon_code(v.author.email),
+            :date_full=> v.authored_date,
           }
         end
       end