move db_upgrade to zlib

boot.php

@@ -1357,11 +1357,7 @@ function is_ajax() {
 // base url for use in cmdline programs which don't have
 // $_SERVER variables, and synchronising the state of installed plugins.
 
-function check_config(&$a) {
-
-	$build = get_config('system','db_version');
-	if(! intval($build))
-		$build = set_config('system','db_version',DB_UPDATE_VERSION);
+function check_config() {
 
 	$saved = get_config('system','urlverify');
 	if(! $saved)
@@ -1399,88 +1395,8 @@ function check_config(&$a) {
 	if (! $syschan_exists)
 		create_sys_channel();
 
-	if($build != DB_UPDATE_VERSION) {
-		$stored = intval($build);
-		if(! $stored) {
-			logger('Critical: check_config unable to determine database schema version');
-			return;
-		}
-		$current = intval(DB_UPDATE_VERSION);
-		if(($stored < $current) && file_exists('install/update.php')) {
+	$x = new \Zotlabs\Lib\DB_Upgrade(DB_UPDATE_VERSION);
 
-			load_config('database');
-
-			// We're reporting a different version than what is currently installed.
-			// Run any existing update scripts to bring the database up to current.
-			require_once('install/update.php');
-
-			// make sure that boot.php and update.php are the same release, we might be
-			// updating right this very second and the correct version of the update.php
-			// file may not be here yet. This can happen on a very busy site.
-
-			if(DB_UPDATE_VERSION == UPDATE_VERSION) {
-				for($x = $stored; $x < $current; $x ++) {
-					if(function_exists('update_r' . $x)) {
-						// There could be a lot of processes running or about to run.
-						// We want exactly one process to run the update command.
-						// So store the fact that we're taking responsibility
-						// after first checking to see if somebody else already has.
-
-						// If the update fails or times-out completely you may need to
-						// delete the config entry to try again.
-
-						if(get_config('database','update_r' . $x))
-							break;
-						set_config('database','update_r' . $x, '1');
-						// call the specific update
-
-						$func = 'update_r' . $x;
-						$retval = $func();
-						if($retval) {
-
-							// Prevent sending hundreds of thousands of emails by creating
-							// a lockfile.  
-
-							$lockfile = 'store/[data]/mailsent';
-
-							if ((file_exists($lockfile)) && (filemtime($lockfile) > (time() - 86400)))
-									return;
-							@unlink($lockfile);
-							//send the administrator an e-mail
-							file_put_contents($lockfile, $x);
-							
-							$r = q("select account_language from account where account_email = '%s' limit 1",
-								dbesc(App::$config['system']['admin_email'])
-							);
-							push_lang(($r) ? $r[0]['account_language'] : 'en');
-
-
-							$email_tpl = get_intltext_template("update_fail_eml.tpl");
-							$email_msg = replace_macros($email_tpl, array(
-								'$sitename' => App::$config['system']['sitename'],
-								'$siteurl' =>  z_root(),
-								'$update' => $x,
-								'$error' => sprintf( t('Update %s failed. See error logs.'), $x)
-							));
-
-							$subject = email_header_encode(sprintf(t('Update Error at %s'), z_root()));
-
-							mail(App::$config['system']['admin_email'], $subject, $email_msg,
-								'From: Administrator' . '@' . $_SERVER['SERVER_NAME'] . "\n"
-								. 'Content-type: text/plain; charset=UTF-8' . "\n"
-								. 'Content-transfer-encoding: 8bit' );
-							//try the logger
-							logger('CRITICAL: Update Failed: ' . $x);
-							pop_lang();
-						}
-						else
-							set_config('database','update_r' . $x, 'success');
-					}
-				}
-				set_config('system','db_version', DB_UPDATE_VERSION);
-			}
-		}
-	}
 
 	/**
 	 *