Replace fc-gsettings-logger.c with fcmdr-logger.py.

The Fleet Commander logger program is about to become multi-purpose.
But first I wanted to translate the rewritten version back to Python
to see if the pygobject bindings can handle it.  Seems so.

Having this implemented in Python means I can add functionality way
faster than in C, and I can utilize Python's standard library which
is far more extensive than GNOME's.

I think this will really pay off when we start using other methods
like LDAP for profile storage.

Also I'm just tired of writing C code...