- added new owa_error class replacing old. Errors are now buffered un…

…till an error handler is specified from DB. This now means that one can

log errors without worrying about what error handler might or might not be set.
- refactored caller constructor to account for new approach to logging errors and re-organized a bit
- removed references to old error class factory
- added new error class factory to coreAPI

modules/base/classes/cacheFacade.php

@@ -37,14 +37,14 @@ class owa_cacheFacade extends owa_cache {
 
 	function __construct($cache_dir) {
 
-		$this->e = &owa_error::get_instance();
+		$this->e = &owa_coreAPI::errorSingleton();
 		return parent::__construct($cache_dir);
 
 	}
 
 	function owa_cacheFacade($cache_dir) {
 
-		$this->e = &owa_error::get_instance();
+		$this->e = &owa_coreAPI::errorSingleton();
 		return $this->owa_cache($cache_dir);
 
 	}