Merge pull request #384 from micheldumontier/release3

clinicaltrials: fixed bug in parsing overall status

Author: micheldumontier

clinicaltrials/clinicaltrials.php

@@ -364,7 +364,7 @@ function process_file($infile) {
 			#################################################################################
 			# overall status
 			#################################################################################
-			$overall_status = @array_shift($root->xpath('//overall_status'));
+			$overall_status = $this->getString('//overall_status');
 			if($overall_status) {
 				$status_id = "clinicaltrials_resource:".md5($overall_status);
 				parent::addRDF(