Don't check hostname before loading conf.ini

[philae-ael]

By ex

For instance: opv_dm_web.py -s
Or: opv_dm_web.py -o 127.0.0.1 -p 5001 -c conf.ini
with conf:

[OPV]
# Id of the worker
id=First
# Path to directory
path=directory_manager_storage
# Host to give with the URI. MUST BE THE HOST OF THE CURRENT COMPUTER!!!!
# If none, will compute it.
host=127.0.0.1

# Storage Service
[FTP]
host=0.0.0.0
port=2121
logfile=opv_directory_manager_ftp.log

[HTTP]
host=0.0.0.0
port=5050
logfile=opv_directory_manager_http.log

Traceback (most recent call last):
  File "/home/tristan/.virtualenvs/DirectoryManager/bin/opv_dm_web.py", line 6, in <module>
    exec(compile(open(__file__).read(), __file__, 'exec'))
  File "/home/tristan/opv/prog/DirectoryManager/bin/opv_dm_web.py", line 22, in <module>
    from opv_directorymanager import Webservice, default_config
  File "/home/tristan/opv/prog/DirectoryManager/opv_directorymanager/__init__.py", line 21, in <module>
    from opv_directorymanager.storage_service import *
  File "/home/tristan/opv/prog/DirectoryManager/opv_directorymanager/storage_service/__init__.py", line 19, in <module>
    from opv_directorymanager.storage_service.ftp import FTP
  File "/home/tristan/opv/prog/DirectoryManager/opv_directorymanager/storage_service/ftp.py", line 27, in <module>
    HOST = socket.gethostbyname(socket.gethostname())
socket.gaierror: [Errno -2] Name or service not known