Remove SuSEconfig call for postfix
Remove SuSEconfig call for sendmail
Removed disabled and obsolete code.
Fixed testsuite after postfix and sendmail SUSEConfig calls removal.
Updated changelog.
Removed obsolete RunSuSEconfigModule.
Removed SuSEConfig call for apache2.

Apache2's SuSEConfig module was removed sometime in 2005 (SLES10).
Updated testsuite so it reflects removal of SuSEConfig for apache2.
Removed gdm's SuSEconfig call.

According changes in gdm package the script was dropped in 2010.
Replaced SuSEconfig.isdn call.

According i4l-base.changes it was replaced by:

/etc/sysconfig/isdn/scripts/postprocess.isdn

since OpenSUSE 12.3.
Modified messages. SuSEconfig has gone ...
Merge pull request #59 from mchf/master

SUSEconfig calls removed