Support text_formatted token replacement.

Partially fixed by #1621084: Support list<struct> type tokens. But the patch needs more work. I used two formatted text tokens in a rules email. One of the two is fixed. The other is now blank.

I have two filtered text fields. One of them is being treated as type text, and the other is being treated as a struct. The one that is treated as a struct is working. Not sure why the other one is treated as text.

The issue is that I used the same field in two different content types. In one content type it is text, in another it is text_formatted. So, once the field gets loaded as text, it must get cached and then the second content type doesn't get loaded as text_formatted. I worked around the bug, by making both fields text_formatted.

This module has automated tests. I wonder what happens with this patch. Will try to kick it off.

+++ b/entity_token.tokens.inc
@@ -327,6 +327,8 @@ function _entity_token_get_token($wrapper, $options) {
+      return $wrapper->value()['value'];

Not sure if this is even overall the right solution. But if the code is used, I guess that since we have to support PHP 5.3, it should use a tmp variable:

$value = $wrapper->value();
return value['value'];