Undefined Token type when Taxonomy module not enabled

hansel_token_info() defines a Token for the term type regardless the existence of the Taxonomy module. This causes the following warning on the status report page.

The following token types are not defined but have tokens:

$info['types']['term']

Additionally, the token_insert_wysiwyg module throws an error while trying to generate a list of tokens.

Recoverable fatal error: Argument 2 passed to _token_token_tree_format_row() must be an array, null given

I've taken a stab at a patch for the issue. Seems to work as expected.