Add user last access property

+++ b/modules/callbacks.inc
@@ -305,6 +305,9 @@ function entity_metadata_taxonomy_vocabulary_get_properties($vocabulary, array $
+      return empty($account->access) ? NULL : $account->access;

Is the property sometimes FALSE? If so we need that, if it's just NULL or set we could go with the default getter.

Tests fails...

@empty. we need it, but let's add a comment like that:

// In case there was no access the value is 0, but we have to return NULL.

thanks, committed.