Revert "removing call to startLogging because twistd already does it" since the rotation mechanism sucks out of the box (needs write permission on the file to rotate, and the file is
created before dropping privileges..)

This reverts commit 08dd5534034fc26f57535a13eb90e6f5febda2f0.
initializing logging from the application since the rotation mechanism from twistd seems to be designed to suck out of the box