Description:
------------
A "new SoapClient ()" clause on WSDL mode will fail if 

a.- the WSDL contains one o more xsd:import clauses, and
b.- the client is using a proxy

when processing the import clause, SoapClient will try to connect to the proxy host and use a 

GET /path/from/schemaLocation(path+query string) HTTP/1.0

instead of 

GET schemaLocation(full uri) HTTP/1.0

Also, the current request will cause a "TAG_NONE/400" error on the proxy log.

Test script:
---------------
$client = new SoapClient($wsdl, // $wsdl MUST contain an <xsd:import clause>
        array('proxy_host'   => "proxy_ip", 'proxy_port'   => proxy_port)
);


Expected result:
----------------
object $client is created 

Actual result:
--------------
exception with the message 
SOAP-ERROR: Parsing Schema: can't import schema from 'schemaLocation'