Add g:jedi#use_tag_stack feature for jedi#goto()

autoload/jedi.vim

@@ -34,7 +34,8 @@ let s:default_settings = {
     \ 'quickfix_window_height': 10,
     \ 'completions_enabled': 1,
     \ 'force_py_version': "'auto'",
-    \ 'smart_auto_mappings': 1
+    \ 'smart_auto_mappings': 1,
+    \ 'use_tag_stack': 1
 \ }
 
 for [s:key, s:val] in items(s:deprecations)