Imports code from RippingCluster project

Imports all generic classes from the RippingCluster project, with any ripping-specific code stripped out.
Tested against a dummy project for errors.

source/lib/Sihnon/Exceptions.class.php

@@ -0,0 +1,21 @@
+<?php
+
+class Sihnon_Exception extends Exception {};
+
+class Sihnon_Exception_DatabaseException      extends Sihnon_Exception {};
+class Sihnon_Exception_DatabaseConfigMissing  extends Sihnon_Exception_DatabaseException {};
+class Sihnon_Exception_DatabaseConnectFailed  extends Sihnon_Exception_DatabaseException {};
+class Sihnon_Exception_NoDatabaseConnection   extends Sihnon_Exception_DatabaseException {};
+class Sihnon_Exception_DatabaseQueryFailed    extends Sihnon_Exception_DatabaseException {};
+class Sihnon_Exception_ResultCountMismatch    extends Sihnon_Exception_DatabaseException {};
+
+class Sihnon_Exception_ConfigException        extends Sihnon_Exception {};
+class Sihnon_Exception_UnknownSetting         extends Sihnon_Exception_ConfigException {};
+
+class Sihnon_Exception_CacheException         extends Sihnon_Exception {};
+class Sihnon_Exception_InvalidCacheDir        extends Sihnon_Exception_CacheException {};
+class Sihnon_Exception_CacheObjectNotFound    extends Sihnon_Exception_CacheException {};
+
+class Sihnon_Exception_InvalidPluginName      extends Sihnon_Exception {};
+
+?>