Changes to allow setting Zend_Http_Client config
Fixes to enable listing pseudo-directories, ie:

$objects = $cf->getObjects('my container', array('delimiter' => '/', 'prefix' => '/path/to/dir');
var_dump($objects);

// or, using stream wrapper

$it = new RecursiveIteratorIterator(new RecursiveDirectoryIterator('rscf://mycontainer/path/to/dir'));
foreach ($it as $fileinfo) {
	echo $fileinfo->getPathName();
}
Added workaround for recognising directories marked by placeholder files
Fixed duplicate listings caused by pseudo-directory placeholders (CyberDuck et al). Fixed unneeded calls to stat when STREAM_URL_STAT_LINK is set.