handler/ooo: add `long` in processed types

that can happen on the environment where UNO library is built with Python 2.

/cc @rafael @gabriel @kazuhiko 

/reviewed-on nexedi/cloudooo!5

cloudooo/handler/ooo/helper/unomimemapper.py

@@ -35,11 +35,17 @@ except ImportError:
 import helper_util
 from getopt import getopt, GetoptError
 
+# python3 support
 try:
   basestring
 except NameError:
   basestring = str
 
+try:
+  long
+except NameError:
+  long = int
+
 __doc__ = """
 
 usage: unomimemapper [options]
@@ -76,7 +82,7 @@ class UnoMimemapper(object):
         for obj in iter(element_list):
             if obj.Name in ignore_name_list:
               continue
-            if not isinstance(obj.Value, (bool, int, basestring, tuple)):
+            if not isinstance(obj.Value, (bool, int, long, basestring, tuple)):
               continue
             element_dict[obj.Name] = obj.Value
             service_dict[name] = element_dict