metastore.s3: use rawurlencode instead of urlencode

Author: cdujeu

core/src/plugins/metastore.s3/class.s3MetaStore.php

@@ -112,7 +112,7 @@ public function setMetadata($ajxpNode, $nameSpace, $metaData, $private = false,
             array(
                 'Bucket' => $this->bucketName,
                 'Key' => $pathName,
-                'CopySource' => $this->bucketName."/".urlencode($pathName),
+                'CopySource' => $this->bucketName."/".rawurlencode($pathName),
                 'MetadataDirective' => 'REPLACE',
                 'Metadata' => array($this->getMetaKey($nameSpace,$scope,$user) => base64_encode(serialize($metaData)))
             )
@@ -131,7 +131,7 @@ public function removeMetadata($ajxpNode, $nameSpace, $private = false, $scope=A
                 array(
                     'Bucket' => $this->bucketName,
                     'Key' => $pathName,
-                    'CopySource' => $this->bucketName."/".urlencode($pathName),
+                    'CopySource' => $this->bucketName."/".rawurlencode($pathName),
                     'MetadataDirective' => 'REPLACE',
                     'Metadata' => array($this->getMetaKey($nameSpace,$scope,$user) => "")
                 )