previously one had to set KDESU_USE_SUDO_DEFAULT to build kdesu
with sudo support and no message has been printed to show that it
was/was not found in the features log.
for compatibilty reasons automoc4 support is not removed but it
shall be in the future. automoc4 has not been maintained for a
while (last commit is from 2011) and the stable release is from
2009.
CMake version >= 2.8.6 provides the functionality for mocking so
I see no reason to not make use of it.
