Delete template content option

From old feedback: Delete template content option | Cwicly

I think it is really needed to have an option to clear all content from the predefined templates inside the Cwicly Themer. If I am forced to delete every section in every template one by one in every new Cwicly installation, this is not something I could accept on long-term. Even better would be an option when installing Cwicly if you have the option to chose empty templates as default.