diff --git a/library/log4php/LoggerAppender.php b/library/log4php/LoggerAppender.php
deleted file mode 100644
--- a/library/log4php/LoggerAppender.php
+++ /dev/null
@@ -1,289 +0,0 @@
-<?php
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * @package log4php
- */
-
-/**
- * Abstract class that defines output logs strategies.
- *
- * @version $Revision: 1374777 $
- * @package log4php
- */
-abstract class LoggerAppender extends LoggerConfigurable {
-
-    /**
-     * Set to true when the appender is closed. A closed appender will not
-     * accept any logging requests.
-     * @var boolean
-     */
-    protected $closed = false;
-
-    /**
-     * The first filter in the filter chain.
-     * @var LoggerFilter
-     */
-    protected $filter;
-
-    /**
-     * The appender's layout. Can be null if the appender does not use
-     * a layout.
-     * @var LoggerLayout
-     */
-    protected $layout;
-
-    /**
-     * Appender name. Used by other components to identify this appender.
-     * @var string
-     */
-    protected $name;
-
-    /**
-     * Appender threshold level. Events whose level is below the threshold
-     * will not be logged.
-     * @var LoggerLevel
-     */
-    protected $threshold;
-
-    /**
-     * Set to true if the appender requires a layout.
-     *
-     * True by default, appenders which do not use a layout should override
-     * this property to false.
-     *
-     * @var boolean
-     */
-    protected $requiresLayout = true;
-
-    /**
-     * Default constructor.
-     * @param string $name Appender name
-     */
-    public function __construct($name = '') {
-        $this->name = $name;
-
-        if ($this->requiresLayout) {
-            $this->layout = $this->getDefaultLayout();
-        }
-    }
-
-    public function __destruct() {
-        $this->close();
-    }
-
-    /**
-     * Returns the default layout for this appender. Can be overriden by
-     * derived appenders.
-     *
-     * @return LoggerLayout
-     */
-    public function getDefaultLayout() {
-        return new LoggerLayoutSimple();
-    }
-
-    /**
-     * Adds a filter to the end of the filter chain.
-     * @param LoggerFilter $filter add a new LoggerFilter
-     */
-    public function addFilter($filter) {
-        if ($this->filter === null) {
-            $this->filter = $filter;
-        } else {
-            $this->filter->addNext($filter);
-        }
-    }
-
-    /**
-     * Clears the filter chain by removing all the filters in it.
-     */
-    public function clearFilters() {
-        $this->filter = null;
-    }
-
-    /**
-     * Returns the first filter in the filter chain.
-     * The return value may be <i>null</i> if no is filter is set.
-     * @return LoggerFilter
-     */
-    public function getFilter() {
-        return $this->filter;
-    }
-
-    /**
-     * Returns the first filter in the filter chain.
-     * The return value may be <i>null</i> if no is filter is set.
-     * @return LoggerFilter
-     */
-    public function getFirstFilter() {
-        return $this->filter;
-    }
-
-    /**
-     * Performs threshold checks and invokes filters before delegating logging
-     * to the subclass' specific <i>append()</i> method.
-     * @see LoggerAppender::append()
-     * @param LoggerLoggingEvent $event
-     */
-    public function doAppend(LoggerLoggingEvent $event) {
-        if ($this->closed) {
-            return;
-        }
-
-        if (!$this->isAsSevereAsThreshold($event->getLevel())) {
-            return;
-        }
-
-        $filter = $this->getFirstFilter();
-        while ($filter !== null) {
-            switch ($filter->decide($event)) {
-                case LoggerFilter::DENY:
-                    return;
-                case LoggerFilter::ACCEPT:
-                    return $this->append($event);
-                case LoggerFilter::NEUTRAL:
-                    $filter = $filter->getNext();
-            }
-        }
-        $this->append($event);
-    }
-
-    /**
-     * Sets the appender layout.
-     * @param LoggerLayout $layout
-     */
-    public function setLayout($layout) {
-        if ($this->requiresLayout()) {
-            $this->layout = $layout;
-        }
-    }
-
-    /**
-     * Returns the appender layout.
-     * @return LoggerLayout
-     */
-    public function getLayout() {
-        return $this->layout;
-    }
-
-    /**
-     * Configurators call this method to determine if the appender
-     * requires a layout.
-     *
-     * <p>If this method returns <i>true</i>, meaning that layout is required,
-     * then the configurator will configure a layout using the configuration
-     * information at its disposal.     If this method returns <i>false</i>,
-     * meaning that a layout is not required, then layout configuration will be
-     * skipped even if there is available layout configuration
-     * information at the disposal of the configurator.</p>
-     *
-     * <p>In the rather exceptional case, where the appender
-     * implementation admits a layout but can also work without it, then
-     * the appender should return <i>true</i>.</p>
-     *
-     * @return boolean
-     */
-    public function requiresLayout() {
-        return $this->requiresLayout;
-    }
-
-    /**
-     * Retruns the appender name.
-     * @return string
-     */
-    public function getName() {
-        return $this->name;
-    }
-
-    /**
-     * Sets the appender name.
-     * @param string $name
-     */
-    public function setName($name) {
-        $this->name = $name;
-    }
-
-    /**
-     * Returns the appender's threshold level.
-     * @return LoggerLevel
-     */
-    public function getThreshold() {
-        return $this->threshold;
-    }
-
-    /**
-     * Sets the appender threshold.
-     *
-     * @param LoggerLevel|string $threshold Either a {@link LoggerLevel}
-     *   object or a string equivalent.
-     * @see LoggerOptionConverter::toLevel()
-     */
-    public function setThreshold($threshold) {
-        $this->setLevel('threshold', $threshold);
-    }
-
-    /**
-     * Checks whether the message level is below the appender's threshold.
-     *
-     * If there is no threshold set, then the return value is always <i>true</i>.
-     *
-     * @param LoggerLevel $level
-     * @return boolean Returns true if level is greater or equal than
-     *   threshold, or if the threshold is not set. Otherwise returns false.
-     */
-    public function isAsSevereAsThreshold($level) {
-        if ($this->threshold === null) {
-            return true;
-        }
-        return $level->isGreaterOrEqual($this->getThreshold());
-    }
-
-    /**
-     * Prepares the appender for logging.
-     *
-     * Derived appenders should override this method if option structure
-     * requires it.
-     */
-    public function activateOptions() {
-        $this->closed = false;
-    }
-
-    /**
-     * Forwards the logging event to the destination.
-     *
-     * Derived appenders should implement this method to perform actual logging.
-     *
-     * @param LoggerLoggingEvent $event
-     */
-    abstract protected function append(LoggerLoggingEvent $event);
-
-    /**
-     * Releases any resources allocated by the appender.
-     *
-     * Derived appenders should override this method to perform proper closing
-     * procedures.
-     */
-    public function close() {
-        $this->closed = true;
-    }
-
-    /** Triggers a warning for this logger with the given message. */
-    protected function warn($message) {
-        $id = get_class($this) . (empty($this->name) ? '' : ":{$this->name}");
-        trigger_error("log4php: [$id]: $message", E_USER_WARNING);
-    }
-
-}