Fix link templates for mailer.

templates/waterfall_mail.html

 {% extends "base_mail.html" %}
 
 {% block buildbox%}
 
 {% set results = ["success", "warnings", "failure", "skipped", "exception",
                       "retry"] %}
 {% set styles = {
     'exception': ('color: #FFFFFF; background-color: #e0b0ff; '
                   'border-color: #ACA0B3;'),
     'failure': ('color: #FFFFFF; background-color: #e98080; '
                 'border-color: #A77272;'),
     'retry': ('color: #FFFFFF; background-color: #e0b0ff; '
                   'border-color: #ACA0B3;'),
     'offline': ('color: #FFFFFF; background-color: #e0b0ff; '
                 'border-color: #ACA0B3;'),
     'skipped': '',
     'start': ('color: #666666; background-color: #fffc6c;'
               'border-color: #C5C56D;'),
     'success': ('color: #FFFFFF; background-color: #8fdf5f; '
                 'border-color: #4F8530;'),
     'warnings': ('color: #FFFFFF; background-color: #ffc343; '
                  'border-color: #C29D46;'),
    }
 %}
 
 {% set buildername = build_status['builderName'] %}
-<tr><td style="{{styles[results[(build_status['result'])]]}}"><a title="Reason: {{build_status['reason']}}" href="{{waterfall_url}}builders/{{buildername|urlquote}}/builds/{{build_status['number']}}">Build {{build_status['number']}}</a></td></tr>
+<tr><td style="{{styles[results[(build_status['result'])]]}}"><a title="Reason: {{build_status['reason']}}" href="{{waterfall_url}}/builders/{{buildername|urlquote}}/builds/{{build_status['number']}}">Build {{build_status['number']}}</a></td></tr>
 {% for step in build_status['steps'] if step['started'] and step['text'] %}
   <tr><td style="{{styles[results[step['results']]]}}">
       {% for line in step['text'] %}
         {{line}}<br/>
       {% endfor %}
       {% for steplog in step['logs'] %}
         <a href="{{steplog[1]}}">{{steplog[0]}}</a><br/>
       {% endfor %}
       {% for urlname, target in step['urls'].iteritems() %}
         <a href="{{target}}">{{urlname}}</a><br/>
@@ skipping 40 matching lines @@
     <ul>
       {% for prop in change['properties'] %}
         <li>
           {{prop[0]}}: {{prop[1]}}<br/></li>
       {% endfor %}
     </ul>
     </p>
   {% endfor %}
 {% endblock %}