Updates to implement finish, process MultiSmartData for v1.2 (Mobile)...

Updates to implement finish, process MultiSmartData for v1.2 (Mobile) SmartData and MultiValue workflow support.

api/get.php

@@ -52,5 +52,13 @@ try {
     return false;
 }
 
+
 http_response_code(HttpStatusCode::OK);
-echo $response;
+if ( isset( $response['headers'] ) ){
+        foreach ( $response['headers'] as $header )
+                header( $header );
+} else {
+        //TODO Maybe this will not be used due all queries use x-sendfile
+        error_log("Query not using X-SendFile!");
+        echo $response;
+}