better checking for empty string on replace

utils.py

@@ -114,6 +114,9 @@ def replacePlaceNames(old, new, operator="", start=0, end=100):
         value = m['value']
         new_value = value.replace(old, new).strip()
         if new_value = '':
+            log =  "EMPTY VALUE: %s" % m['id']
+            logFile.write(log)
+            print log
             continue
         ret.append(api.editAnnotation({
             'id': m['id'],