[doc] fix doc to work in all known repos.

recipe_engine/config.py

 # Copyright 2013 The LUCI Authors. All rights reserved.
 # Use of this source code is governed under the Apache License, Version 2.0
 # that can be found in the LICENSE file.
 
 """Recipe Configuration Meta DSL.
 
 This module contains, essentially, a DSL for writing composable configurations.
 You start by defining a schema which describes how your configuration blobs will
 be structured, and what data they can contain. For example:
 
@@ skipping 322 matching lines @@
   def schema_proto(self):
     """Returns a doc.Doc.Schema proto message for this config type."""
     raise NotImplementedError
 
 
 _SIMPLE_TYPE_LOOKUP = {
   str: doc.Doc.Schema.STRING,
   basestring: doc.Doc.Schema.STRING,
   unicode: doc.Doc.Schema.STRING,
   int: doc.Doc.Schema.NUMBER,
+  long: doc.Doc.Schema.NUMBER,
   float: doc.Doc.Schema.NUMBER,
   bool: doc.Doc.Schema.BOOLEAN,
   dict: doc.Doc.Schema.OBJECT,
   list: doc.Doc.Schema.ARRAY,
   type(None): doc.Doc.Schema.NULL,
 }
 
 
 def _inner_type_schema(inner_type):
   ret = []
@@ skipping 551 matching lines @@
 
   def _is_default(self):
     return self.data is None
 
   def schema_proto(self):
     ret = doc.Doc.Schema()
     ret.enum.values_json.extend(json.dumps(self.jsonish_fn(v))
                                 for v in self.values)
     ret.enum.required = self.required
     return ret