Update of the app settings

I updated several things:

- the allowed host in order to run the website in production mode.
- I added the compressor application to the list of available apps
- setup the `STATIC_ROOT` to give the compressor library the path where
are stored both the css and javascript files
- I setup the compressor library to be used at runtime
- I setup the preprocessor for the scss files

Signed-off-by: Matthieu Berjon <matthieu.berjon@inria.fr>

django/allgo/settings.py

@@ -25,7 +25,7 @@ SECRET_KEY = 'hv@@v0dt@@1^bhjbt!r0ovyz&4-+fj099825+tr4y)y5d#kely'
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = True
 
-ALLOWED_HOSTS = []
+ALLOWED_HOSTS = ['localhost', '127.0.0.1', '[::1]']
 
 
 # Application definition
@@ -37,6 +37,7 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+    'compressor',
     'poc',
 ]
 
@@ -121,5 +122,18 @@ USE_TZ = True
 
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/1.11/howto/static-files/
-
+COMPRESS_ENABLED = True
 STATIC_URL = '/static/'
+STATIC_ROOT = os.path.join(BASE_DIR, 'static')
+
+STATICFILES_FINDERS = (
+    'django.contrib.staticfiles.finders.FileSystemFinder',
+    'django.contrib.staticfiles.finders.AppDirectoriesFinder',
+
+    #  'djangobower.finders.BowerFinder', # add this
+    'compressor.finders.CompressorFinder', # add this
+)
+
+COMPRESS_PRECOMPILERS = (
+    ('text/x-scss', 'django_libsass.SassCompiler'),
+)