[BUGFIX] php 5.6 compatibility fixes and CGL

Classes/Controller/MailController.php

@@ -87,7 +87,7 @@ class MailController extends ActionController {
 		}
 
 		$registerArray = MailTemplateService::getRegisterArray();
-		$extensionConfiguration = unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf']['sg_mail'], [FALSE]);
+		$extensionConfiguration = unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf']['sg_mail']);
 		if (isset($extensionConfiguration['excludeTemplates']) && $extensionConfiguration['excludeTemplates'] !== '') {
 			$excludedTemplates = GeneralUtility::trimExplode(',', $extensionConfiguration['excludeTemplates'], TRUE);
 			if ($excludedTemplates && count($excludedTemplates)) {
@@ -100,14 +100,15 @@ class MailController extends ActionController {
 			}
 		}
 		$removeExtensionKeys = [];
-		foreach($registerArray as $extensionKey => $extensionTemplates) {
+		foreach ($registerArray as $extensionKey => $extensionTemplates) {
 			if (count($extensionTemplates) === 0) {
 				$removeExtensionKeys[] = $extensionKey;
 			}
 		}
-		foreach($removeExtensionKeys as $extensionKey) {
+		foreach ($removeExtensionKeys as $extensionKey) {
 			unset($registerArray[$extensionKey]);
 		}
+		reset($registerArray);
 
 		// if no extensions are registered, redirect to empty action
 		if (empty($registerArray)) {