fix build

core/Twig.php

@@ -42,7 +42,7 @@ class Piwik_Twig
             array(
                  'debug' => true, // to use {{ dump(var) }} in twig templates
                  'strict_variables' => true, // throw an exception if variables are invalid
-                 'cache' => PIWIK_DOCUMENT_ROOT . '/tmp/templates_c',
+                 'cache' => PIWIK_USER_PATH . '/tmp/templates_c',
             )
         );
         $this->twig->addExtension(new Twig_Extension_Debug());

plugins/Goals/templates/getGoalReportView.twig

@@ -5,7 +5,7 @@
 {% if nb_conversions > 0 %}
     <h2>{{ 'Goals_ConversionsOverview'|translate }}</h2>
     <ul class="ulGoalTopElements">
-        {% if ecommerce is not defined}
+        {% if ecommerce is not defined %}
             {% if topDimensions.country is defined %}
                 <li>{{ 'Goals_BestCountries'|translate }} {% include '@Goals/_listTopDimension.twig' with {'topDimension':topDimensions.country} %}</li>
             {% endif %}

plugins/Live/templates/getVisitorLog.twig

@@ -263,7 +263,7 @@
                                         </span>
                                     {% elseif action.goalName is not defined%}
                                         {# Page view / Download / Outlink #}
-                                        {% if action.pageTitle is not empty %}
+                                        {% if action.pageTitle is defined %}
                                             {{ action.pageTitle|truncate(80) }}
                                         {% endif %}
                                         {% if action.siteSearchKeyword is defined %}