Allow to use tt_address instead of fe_user for newsletter subscription.

[extcode]

We (TRITUM GmbH) use your extension for our newsletter subscription. Some new conditions will let us switch to tt_address instead of fe_user.

Our idea is to contribute some code to your extension to add a switch in the extension manager configuration to optional change the repository from fe_user to tt_address. Are you interested in this change or should we fork the extension for our own an change the repository directly for our projects?

[MattiasNilsson]

@extcode That sounds like an awesome idea! We would really like to have this as a PR :)

[BastianBalthasarBux]

Any news on that? Would be a really great enhancement!

[extcode]

Yes. I have to do some cleanup and documentation.

[tritum]

Why did extcode close this issue? We have developed the feature. I will take a look and will try to push a PR. Stay tuned.

[tritum]

Can you please re-open this issue?

[anjeylink]

@tritum done

[tritum]

#16