///application/configs/application.ini
[production]
phpSettings.display_startup_errors = 0
phpSettings.display_errors = 0
includePaths.library = APPLICATION_ROOT "/library"
bootstrap.path = APPLICATION_PATH "/Bootstrap.php"
bootstrap.class = "Bootstrap"
appnamespace = 'Application'
autoloaderNamespaces[] = "Tekika_"
autoloaderNamespaces[] = "App_"
resources.frontController.controllerDirectory = APPLICATION_PATH "/controllers"
resources.frontController.moduleDirectory = APPLICATION_PATH "/modules"
resources.frontController.plugins.LayoutSelector = "Application_Plugin_LayoutSelector"
resources.modules[] = ""
resources.view.encoding = "UTF-8"
resources.view.doctype  = "HTML5"
resources.view.charset  = "utf-8"
resources.view.basePath = APPLICATION_PATH "/views/"
resources.view.helperPath.Application_View_Helper = APPLICATION_PATH "/views/helpers/"
resources.layout.layoutPath = APPLICATION_PATH "/layouts"

///
in application/Bootstrap.php:

protected function _initAutoloading(){
    $autoloader = Zend_Loader_Autoloader::getInstance();
    $autoloader->setFallbackAutoloader(true);

    /* if I uncomment this, it works, but this should already be set up via the appnamespace setting
    $moduleLoader = new Zend_Application_Module_Autoloader(array(
        'namespace' => 'Application',
        'basePath'  => APPLICATION_PATH
    ));
    */
}

///The error I get

Warning: include_once(Application/Plugin/LayoutSelector.php) [function.include-once]: failed to open stream: No such file or directory in /home/tekika_testsites/local/lib/php/ZendFramework/1.11.3/library/Zend/Loader.php on line 146

Warning: include_once() [function.include]: Failed opening 'Application/Plugin/LayoutSelector.php' for inclusion (include_path='/home/tekika_testsites/integra.tekika.com/library:/home/tekika_testsites/integra.tekika.com/library:.:/usr/local/lib/php:/usr/local/php5/lib/pear') in /home/tekika_testsites/local/lib/php/ZendFramework/1.11.3/library/Zend/Loader.php on line 146

Fatal error: Class 'Application_Plugin_LayoutSelector' not found in /home/tekika_testsites/local/lib/php/ZendFramework/1.11.3/library/Zend/Application/Resource/Frontcontroller.php on line 117