Problem in request URL

Commit c0fb0f3 fixes just a part of the problem. When connecting to alfresco the connection
itself was ok. But the CMIS browser could not get any children from a folder. Because the url
just ends with an ampersand &

I made a little fix myself. But I do not know if this problem is only related to getChildren.

/ cmis_common / lib / cmis_repository_wrapper.php
on row 515 changes:

$ret = $this->doGet($myURL.'&'.urldecode(http_build_query($options)));

in

if (count($options) > 0) {
   $myURL.= '&'.urldecode(http_build_query($options));
}
$ret = $this->doGet($myURL);