Fix openstack logging issues for debug, use stderr for default logging

- There are stdout logging related bugs exist in openstack services, thus
  as a workaround, stderr logging should be used for non syslog mode (option 1)
- Log config for stdout logging provided as well but now configured to be used
- Because of some issues with logdir/log_dir logfile/log_file typos, use both

TODO fix init scripts to redirect stderr to logfiles and
to not use explicit logfile/logdir/logconfig in daemon launch string

Implements (partially): #FUEL-835, Option 1

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>