Update modulePosition method

closes #109

Author: javigomez

src/JoomlaBrowser.php

@@ -672,7 +672,7 @@ public function setModulePosition($module, $position = 'position-7')
         $I->amOnPage('administrator/index.php?option=com_modules');
         $I->searchForItem($module);
         $I->click(['link' => $module]);
-        $I->waitForText($module, 30, ['css' => 'H3']);
+        $I->waitForText("Modules: $module", 30, ['css' => 'h1.page-title']);
         $I->selectOptionInChosen('Position', $position);
         $I->click(['xpath' => "//div[@id='toolbar-apply']/button"]);
         $I->waitForText('Module successfully saved',30,['id' => 'system-message-container']);