Remove LogException and CacheException

Both these exception classes have very few callers and really don't
offer the end user any additional information beyond a type.

lib/Cake/Cache/Cache.php

@@ -142,7 +142,7 @@ public static function config($name = null, $settings = array()) {
  *
  * @param string $name Name of the config array that needs an engine instance built
  * @return boolean
- * @throws CacheException
+ * @throws Cake\Error\Exception
  */
 	protected static function _buildEngine($name) {
 		$config = Configure::read('Cache.' . $name);
@@ -154,7 +154,7 @@ protected static function _buildEngine($name) {
 			return false;
 		}
 		if (!is_subclass_of($cacheClass, 'Cake\Cache\CacheEngine')) {
-			throw new Error\CacheException(__d('cake_dev', 'Cache engines must use Cake\Cache\CacheEngine as a base class.'));
+			throw new Error\Exception(__d('cake_dev', 'Cache engines must use Cake\Cache\CacheEngine as a base class.'));
 		}
 		$engine = new $cacheClass();
 		if ($engine->init($config)) {

lib/Cake/Log/Log.php

@@ -206,7 +206,7 @@ public static function reset() {
  *    logger later.
  * @param array $config Array of configuration information for the logger
  * @return boolean success of configuration.
- * @throws Cake\Error\LogException
+ * @throws Cake\Error\Exception
  */
 	public static function config($key, $config) {
 		trigger_error(
@@ -254,12 +254,12 @@ public static function drop($streamName) {
  *
  * @param string $streamName to check
  * @return bool
- * @throws Cake\Error\LogException
+ * @throws Cake\Error\Exception
  */
 	public static function enabled($streamName) {
 		static::_init();
 		if (!isset(static::$_Collection->{$streamName})) {
-			throw new Error\LogException(__d('cake_dev', 'Stream %s not found', $streamName));
+			throw new Error\Exception(__d('cake_dev', 'Stream %s not found', $streamName));
 		}
 		return static::$_Collection->enabled($streamName);
 	}
@@ -270,12 +270,12 @@ public static function enabled($streamName) {
  *
  * @param string $streamName to enable
  * @return void
- * @throws Cake\Error\LogException
+ * @throws Cake\Error\Exception
  */
 	public static function enable($streamName) {
 		static::_init();
 		if (!isset(static::$_Collection->{$streamName})) {
-			throw new Error\LogException(__d('cake_dev', 'Stream %s not found', $streamName));
+			throw new Error\Exception(__d('cake_dev', 'Stream %s not found', $streamName));
 		}
 		static::$_Collection->enable($streamName);
 	}
@@ -287,12 +287,12 @@ public static function enable($streamName) {
  *
  * @param string $streamName to disable
  * @return void
- * @throws Cake\Error\LogException
+ * @throws Cake\Error\Exception
  */
 	public static function disable($streamName) {
 		static::_init();
 		if (!isset(static::$_Collection->{$streamName})) {
-			throw new Error\LogException(__d('cake_dev', 'Stream %s not found', $streamName));
+			throw new Error\Exception(__d('cake_dev', 'Stream %s not found', $streamName));
 		}
 		static::$_Collection->disable($streamName);
 	}

lib/Cake/Log/LogEngineCollection.php

@@ -32,7 +32,7 @@ class LogEngineCollection extends ObjectCollection {
  * @param LogInterface|array $options Setting for the Log Engine, or the log engine
  *   If a log engine is used, the adapter will be enabled.
  * @return BaseLog BaseLog engine instance
- * @throws Cake\Error\LogException when logger class does not implement a write method
+ * @throws Cake\Error\Exception when logger class does not implement a write method
  */
 	public function load($name, $options = array()) {
 		$logger = false;
@@ -46,7 +46,7 @@ public function load($name, $options = array()) {
 			$logger = $this->_getLogger($options);
 		}
 		if (!$logger instanceof LogInterface) {
-			throw new Error\LogException(sprintf(
+			throw new Error\Exception(sprintf(
 				__d('cake_dev', 'logger class %s is not an instance of Cake\Log\LogInterface.'), $name
 			));
 		}
@@ -70,7 +70,7 @@ protected static function _getLogger($options) {
 		unset($options['engine']);
 		$class = App::classname($name, 'Log/Engine');
 		if (!$class) {
-			throw new Error\LogException(__d('cake_dev', 'Could not load class %s', $name));
+			throw new Error\Exception(__d('cake_dev', 'Could not load class %s', $name));
 		}
 		$logger = new $class($options);
 		return $logger;

lib/Cake/Test/TestCase/Cache/CacheTest.php

@@ -148,7 +148,7 @@ public function testDecrementNonExistingConfig() {
 /**
  * test that trying to configure classes that don't extend CacheEngine fail.
  *
- * @expectedException Cake\Error\CacheException
+ * @expectedException Cake\Error\Exception
  * @return void
  */
 	public function testAttemptingToConfigureANonCacheEngineClass() {

lib/Cake/Test/TestCase/Log/LogTest.php

@@ -76,7 +76,7 @@ public function testImportingLoggers() {
 /**
  * test all the errors from failed logger imports
  *
- * @expectedException Cake\Error\LogException
+ * @expectedException Cake\Error\Exception
  * @return void
  */
 	public function testImportingLoggerFailure() {
@@ -98,7 +98,7 @@ public function testValidKeyName() {
 /**
  * test that loggers have to implement the correct interface.
  *
- * @expectedException Cake\Error\LogException
+ * @expectedException Cake\Error\Exception
  * @return void
  */
 	public function testNotImplementingInterface() {
@@ -130,7 +130,7 @@ public function testDrop() {
  * Test that engine() throws an exception when adding an 
  * adapter with the wrong type.
  *
- * @expectedException Cake\Error\LogException
+ * @expectedException Cake\Error\Exception
  * @return void
  */
 	public function testEngineInjectErrorOnWrongType() {
@@ -219,7 +219,7 @@ public function testSelectiveLoggingByLevel() {
 /**
  * test enable
  *
- * @expectedException Cake\Error\LogException
+ * @expectedException Cake\Error\Exception
  */
 	public function testStreamEnable() {
 		Configure::write('Log.spam', array(
@@ -234,7 +234,7 @@ public function testStreamEnable() {
 /**
  * test disable
  *
- * @expectedException Cake\Error\LogException
+ * @expectedException Cake\Error\Exception
  */
 	public function testStreamDisable() {
 		Configure::write('Log.spam', array(
@@ -251,7 +251,7 @@ public function testStreamDisable() {
 /**
  * test enabled() invalid stream
  *
- * @expectedException Cake\Error\LogException
+ * @expectedException Cake\Error\Exception
  */
 	public function testStreamEnabledInvalid() {
 		Log::enabled('bogus_stream');
@@ -260,7 +260,7 @@ public function testStreamEnabledInvalid() {
 /**
  * test disable invalid stream
  *
- * @expectedException Cake\Error\LogException
+ * @expectedException Cake\Error\Exception
  */
 	public function testStreamDisableInvalid() {
 		Log::disable('bogus_stream');