refs #1915 trying to fix the installation tests

UI @ b8f1631c

-Subproject commit ab41f15940b4b7db6c02c2f52cab226c5f2743bd
+Subproject commit b8f1631c9657fa4573e3637d1fd65ed262f3cc71

tests/PHPUnit/proxy/index.php

@@ -9,7 +9,10 @@ use Piwik\Tracker\Cache;
 require realpath(dirname(__FILE__)) . "/includes.php";
 
 Piwik_TestingEnvironment::addHooks();
-\Piwik\ViewDataTable\Manager::clearAllViewDataTableParameters();
+
+if (empty($_GET['ignoreClearAllViewDataTableParameters'])) {
+    \Piwik\ViewDataTable\Manager::clearAllViewDataTableParameters();
+}
 
 \Piwik\Profiler::setupProfilerXHProf();