VMM/serviceset: Fixed a conditional ProgrammingError.
Affects only setups with Dovecot < v1.2.beta2. Actually the SQL query in
method ServiceSet._load_by_services wasn't updated.
Removed unnecessary code, which would have also produced a
ProgrammingError, if it would have been correct.
==========================
Configuration file for vmm
==========================
When you have installed vmm as described in :doc:`installation/install_vmm`
a copy of :download:`vmm.cfg <_static/vmm.cfg>` will be stored in
:file:`{$PREFIX}/share/doc/vmm`.
.. literalinclude:: _static/vmm.cfg
:language: cfg