Make sure provisioning temporal directory exists (#2386)

Same rationale as 4.2

app/provision/resources/classes/provision.php

@@ -1078,6 +1078,7 @@ include "root.php";
 												$file_contents = $this->render();
 
 											//write the file
+												mkdir($directory,0777,true);
 												$fh = fopen($dest_path,"w") or die("Unable to write to $directory for provisioning. Make sure the path exists and permissons are set correctly.");
 												fwrite($fh, $file_contents);
 												fclose($fh);