Index: kernel/application.php
===================================================================
--- kernel/application.php	(revision 14133)
+++ kernel/application.php	(working copy)
@@ -220,6 +220,13 @@
 	 */
 	var $isAdmin = false;
 
+	/**
+	 * Tells, that Daemon mode is used (minimized database query count, less functionality, more speed)
+	 *
+	 * @var bool
+	 */
+	var $isDaemon = false;
+
  	/**
 	 * Instance of site domain object
 	 *
@@ -277,6 +284,7 @@
 		}
 
 		$this->isAdmin = constOn('ADMIN');
+		$this->isDaemon = constOn('DAEMON');
 
 		if (!constOn('SKIP_OUT_COMPRESSION')) {
 			ob_start(); // collect any output from method (other then tags) into buffer
@@ -835,7 +843,7 @@
 
 			$this->setCache($serial_name, (int)$this->getCache($serial_name) + 1);
 
-			if (!defined('IS_INSTALL') || !IS_INSTALL) {
+			if (!(defined('IS_INSTALL') && IS_INSTALL) && !$this->isDaemon) {
 				// delete cached mod-rewrite urls related to given prefix and id
 				$delete_clause = isset($id) ? $prefix . ':' . $id : $prefix;
 
@@ -2278,6 +2286,10 @@
 
 	function LoadCache()
 	{
+		if ($this->isDaemon) {
+			return ;
+		}
+
 		// TODO: maybe language part isn't required, since same phrase from different languages have one ID now
 		$cache_key = $this->GetVar('t') . $this->GetVar('m_theme') . $this->GetVar('m_lang') . $this->isAdmin;
 
@@ -2309,7 +2321,7 @@
 	 */
 	function LoadStructureTemplateMapping()
 	{
-		if (!$this->isAdmin) {
+		if (!$this->isAdmin && !$this->isDaemon) {
 			$category_helper =& $this->Application->recallObject('CategoryHelper');
 			/* @var $category_helper CategoryHelper */
 
@@ -2319,6 +2331,10 @@
 
 	function UpdateCache()
 	{
+		if ($this->isDaemon) {
+			return ;
+		}
+
 		$update = false;
 		//something changed
 		$update = $update || $this->Phrases->NeedsCacheUpdate();
@@ -3227,7 +3243,7 @@
 	 */
 	function resetCounters($tables)
 	{
-		if (constOn('IS_INSTALL')) {
+		if (constOn('IS_INSTALL') || $this->isDaemon) {
 			return ;
 		}
 
Index: kernel/languages/phrases_cache.php
===================================================================
--- kernel/languages/phrases_cache.php	(revision 14103)
+++ kernel/languages/phrases_cache.php	(working copy)
@@ -181,7 +181,7 @@
 
 	function LoadPhrases($ids)
 	{
-		if ( !is_array($ids) || !implode('', $ids) ) {
+		if ( !is_array($ids) || !implode('', $ids) || $this->Application->isDaemon ) {
 			return;
 		}
 
Index: kernel/startup.php
===================================================================
--- kernel/startup.php	(revision 14103)
+++ kernel/startup.php	(working copy)
@@ -103,6 +103,10 @@
 
 	define('DOMAIN', getArrayValue($vars, 'Domain'));
 
+	if ( isset($vars['DaemonMode']) ) {
+		safeDefine('DAEMON', $vars['DaemonMode']); // safedefine, because could be defined in index.php directly
+	}
+
 	ini_set('memory_limit', '50M');
 
 	define('MODULES_PATH', FULL_PATH . DIRECTORY_SEPARATOR . 'modules');
Index: units/agents/agent_eh.php
===================================================================
--- units/agents/agent_eh.php	(revision 14103)
+++ units/agents/agent_eh.php	(working copy)
@@ -39,6 +39,10 @@
 		 */
 		function OnRefreshAgents(&$event)
 		{
+			if ($this->Application->isDaemon) {
+				return ;
+			}
+
 			$regular_events = $this->Application->EventManager->getRegularEvents(true);
 
 			$object =& $event->getObject( Array ('skip_autoload' => true) );
Index: units/categories/categories_event_handler.php
===================================================================
--- units/categories/categories_event_handler.php	(revision 14161)
+++ units/categories/categories_event_handler.php	(working copy)
@@ -2003,6 +2003,10 @@
 		 */
 		function OnAfterRebuildThemes(&$event)
 		{
+			if ($this->Application->isDaemon) {
+				return ;
+			}
+
 			$sql = 'SELECT t.ThemeId, CONCAT( tf.FilePath, \'/\', tf.FileName ) AS Path, tf.FileMetaInfo
 					FROM '.TABLE_PREFIX.'ThemeFiles AS tf
 					LEFT JOIN '.TABLE_PREFIX.'Theme AS t ON t.ThemeId = tf.ThemeId
Index: units/custom_data/custom_data_event_handler.php
===================================================================
--- units/custom_data/custom_data_event_handler.php	(revision 14130)
+++ units/custom_data/custom_data_event_handler.php	(working copy)
@@ -94,6 +94,10 @@
 		 */
 		function getCustomFields()
 		{
+			if ($this->Application->isDaemon) {
+				return Array ();
+			}
+
 			$sql = 'SELECT *
 					FROM '.TABLE_PREFIX.'CustomField';
 			$ret = $this->Conn->Query($sql, 'CustomFieldId');
Index: units/forms/forms/forms_eh.php
===================================================================
--- units/forms/forms/forms_eh.php	(revision 14103)
+++ units/forms/forms/forms_eh.php	(working copy)
@@ -33,7 +33,7 @@
 
 	function OnCreateSubmissionNodes(&$event)
 	{
-		if (defined('IS_INSTALL') && IS_INSTALL) {
+		if ( (defined('IS_INSTALL') && IS_INSTALL) || $this->Application->isDaemon ) {
 			// skip any processing, because Forms table doesn't exists until install is finished
 			return ;
 		}
Index: units/helpers/curl_helper.php
===================================================================
--- units/helpers/curl_helper.php	(revision 14103)
+++ units/helpers/curl_helper.php	(working copy)
@@ -132,13 +132,16 @@
 				// hardcoded options
 				CURLOPT_RETURNTRANSFER => 1,
 				CURLOPT_REFERER => PROTOCOL.SERVER_NAME,
-				CURLOPT_USERAGENT => $_SERVER['HTTP_USER_AGENT'],
-				
+
 				// don't verify SSL certificates
 				CURLOPT_SSL_VERIFYPEER => false,
 				CURLOPT_HTTPHEADER => Array ('Expect:'),
 			);
 
+			if ( isset($_SERVER['HTTP_USER_AGENT']) ) {
+				$default_options[CURLOPT_USERAGENT] = $_SERVER['HTTP_USER_AGENT'];
+			}
+
 			if ($this->requestHeaders) {
 				$default_options[CURLOPT_HTTPHEADER] = $this->prepareHeaders();
 			}
Index: units/helpers/language_import_helper.php
===================================================================
--- units/helpers/language_import_helper.php	(revision 14103)
+++ units/helpers/language_import_helper.php	(working copy)
@@ -130,7 +130,7 @@
 
 			$this->lang_object =& $this->Application->recallObject('lang.import', null, Array ('skip_autoload' => true));
 
-			if (!(defined('IS_INSTALL') && IS_INSTALL)) {
+			if (!(defined('IS_INSTALL') && IS_INSTALL) && !$this->Application->isDaemon) {
 				// perform only, when not in installation mode
 				$this->_updateEventsCache();
 			}
@@ -152,7 +152,7 @@
 		function performImport($filename, $phrase_types, $module_ids, $import_mode = LANG_SKIP_EXISTING)
 		{
 			// define the XML parsing routines/functions to call based on the handler path
-			if (!file_exists($filename) || !$phrase_types /*|| !$module_ids*/) {
+			if (!file_exists($filename) || !$phrase_types /*|| !$module_ids*/ || $this->Application->isDaemon) {
 				return false;
 			}
 
Index: units/helpers/themes_helper.php
===================================================================
--- units/helpers/themes_helper.php	(revision 14103)
+++ units/helpers/themes_helper.php	(working copy)
@@ -402,6 +402,10 @@
 		 */
 		function refreshThemes()
 		{
+			if ($this->Application->isDaemon) {
+				return ;
+			}
+
 			$themes_found = Array();
 			$skip_filenames = Array ('.', '..', 'CVS', '.svn');