#36 ezmlm-idx 7 compatibility

[Johannes Weberhofer]

With the attached patch I have

- fixed some positions where exec?() calls where terminated with a NULL instead of a (char *)NULL

- added ezmlm-idx 7 compatibility

- support for older versions was dropped (it's not compatible, it would be necessary to always query the version before modifying subscirbers and before reading current settings)

- The system tries to read as many settings as possible from older versions of ezmlm; as some of them conflicts with the new settings those had to be removed; So carefully revise your settings before saving mailing list settings coming from older ezmlm versions the first time

[Johannes Weberhofer]

Revised version of the patch

[Johannes Weberhofer]

Mark shaw has reviewed the patch and corrected an important issue. I have corrected the uploaded patch.
Thank you, Mark!

Mark wrote:
I had to make a small change to get my copy working mailinglist.c at line 824:
< ezmlm_sub (GROUP_MODERATOR, Newu);
---
> > ezmlm_sub (mod, Newu);

Otherwise every digest subscriber was added as a moderator.