Add conditional capability to the setting "Replace surrounding HTML tag?"

[er314]

This is a feature request, to add a config setting to hanna-codes :
When the setting ""Replace surrounding HTML tag?" is enabled, it would be nice to have the capability to ALSO configure the list of applicable tags (white-list), or the non-applicable tags (black-list).
Typical use case :

• when the user of the editor is embedding his hanna-code in an otherwise empty "p" tag, it makes sense to remove the tag
• but when he's embedding his hanna-code in an otherwise empty "td" tag, it makes NO SENSE AT ALL to remove the tag (as this breaks the table)