Uncommenting 'getRawBlock' logging

Added getRawBlack test data in logs to troubleshoot

lib/services/block/index.js

@@ -181,9 +181,12 @@ BlockService.prototype.getRawBlock = function(hash, callback) {
     if(err) {
       return callback(err);
     }
-    if (!block) {
+    let block_raw = block.toRaw();
+     let block_raw_str_hex = block_raw.toString('hex');
+    if (!block || typeof block_raw == "undefined" || typeof block_raw_str_hex == "undefined" || block_raw_str_hex == '') {
       return callback();
     }
+    log.info("Testing getRawBlock " + block_raw_str_hex);
     callback(null, block.toRaw().toString('hex'));
   });
 };