diff -r 859862939996 -r f770159c3cee src/core/migrations/0001_initial.py
--- a/src/core/migrations/0001_initial.py	Tue Jun 25 15:34:18 2013 +0200
+++ b/src/core/migrations/0001_initial.py	Tue Jun 25 16:10:23 2013 +0200
@@ -1,25 +1,23 @@
 # -*- coding: utf-8 -*-
-import datetime
 from south.db import db
 from south.v2 import SchemaMigration
-from django.db import models
 
 
 class Migration(SchemaMigration):
 
     def forwards(self, orm):
         # Adding model 'Thesaurus'
-        db.create_table(u'core_thesaurus', (
+        db.create_table(u'core_thesaurus', (  # @UndefinedVariable
             (u'id', self.gf('django.db.models.fields.AutoField')(primary_key=True)),
             ('label', self.gf('django.db.models.fields.CharField')(unique=True, max_length=128, db_index=True)),
             ('title', self.gf('django.db.models.fields.CharField')(max_length=1024)),
             ('description', self.gf('django.db.models.fields.TextField')(null=True, blank=True)),
             ('uri', self.gf('django.db.models.fields.URLField')(db_index=True, max_length=2048, null=True, blank=True)),
         ))
-        db.send_create_signal('core', ['Thesaurus'])
+        db.send_create_signal('core', ['Thesaurus'])  # @UndefinedVariable
 
         # Adding model 'Term'
-        db.create_table(u'core_term', (
+        db.create_table(u'core_term', (  # @UndefinedVariable
             (u'id', self.gf('django.db.models.fields.AutoField')(primary_key=True)),
             ('label', self.gf('django.db.models.fields.CharField')(max_length=1024, db_index=True)),
             ('lang', self.gf('django.db.models.fields.CharField')(db_index=True, max_length=128, null=True, blank=True)),
@@ -40,19 +38,19 @@
             ('validated', self.gf('django.db.models.fields.BooleanField')(default=False, db_index=True)),
             ('validator', self.gf('django.db.models.fields.related.ForeignKey')(to=orm['jocondelab.User'], null=True, blank=True)),
         ))
-        db.send_create_signal('core', ['Term'])
+        db.send_create_signal('core', ['Term'])  # @UndefinedVariable
 
         # Adding model 'TermLabel'
-        db.create_table(u'core_termlabel', (
+        db.create_table(u'core_termlabel', (  # @UndefinedVariable
             (u'id', self.gf('django.db.models.fields.AutoField')(primary_key=True)),
             ('label', self.gf('django.db.models.fields.CharField')(max_length=1024, db_index=True)),
             ('lang', self.gf('django.db.models.fields.CharField')(db_index=True, max_length=128, null=True, blank=True)),
             ('term', self.gf('django.db.models.fields.related.ForeignKey')(related_name='alternative_labels', to=orm['core.Term'])),
         ))
-        db.send_create_signal('core', ['TermLabel'])
+        db.send_create_signal('core', ['TermLabel'])  # @UndefinedVariable
 
         # Adding model 'Notice'
-        db.create_table(u'core_notice', (
+        db.create_table(u'core_notice', (  # @UndefinedVariable
             (u'id', self.gf('django.db.models.fields.AutoField')(primary_key=True)),
             ('ref', self.gf('django.db.models.fields.CharField')(max_length=20, unique=True, null=True, blank=True)),
             ('adpt', self.gf('django.db.models.fields.TextField')(null=True, blank=True)),
@@ -124,107 +122,107 @@
             ('video', self.gf('django.db.models.fields.CharField')(max_length=2048, null=True, blank=True)),
             ('www', self.gf('django.db.models.fields.CharField')(max_length=512, null=True, blank=True)),
         ))
-        db.send_create_signal('core', ['Notice'])
+        db.send_create_signal('core', ['Notice'])  # @UndefinedVariable
 
         # Adding model 'NoticeImage'
-        db.create_table(u'core_noticeimage', (
+        db.create_table(u'core_noticeimage', (  # @UndefinedVariable
             (u'id', self.gf('django.db.models.fields.AutoField')(primary_key=True)),
             ('relative_url', self.gf('django.db.models.fields.URLField')(unique=True, max_length='1024')),
             ('notice', self.gf('django.db.models.fields.related.ForeignKey')(related_name='images', to=orm['core.Notice'])),
         ))
-        db.send_create_signal('core', ['NoticeImage'])
+        db.send_create_signal('core', ['NoticeImage'])  # @UndefinedVariable
 
         # Adding model 'NoticeTerm'
-        db.create_table(u'core_noticeterm', (
+        db.create_table(u'core_noticeterm', (  # @UndefinedVariable
             (u'id', self.gf('django.db.models.fields.AutoField')(primary_key=True)),
             ('notice', self.gf('django.db.models.fields.related.ForeignKey')(to=orm['core.Notice'])),
             ('term', self.gf('django.db.models.fields.related.ForeignKey')(to=orm['core.Term'])),
             ('graph', self.gf('django.db.models.fields.URLField')(max_length=2048, null=True, blank=True)),
         ))
-        db.send_create_signal('core', ['NoticeTerm'])
+        db.send_create_signal('core', ['NoticeTerm'])  # @UndefinedVariable
 
         # Adding model 'AutrNoticeTerm'
-        db.create_table(u'core_autrnoticeterm', (
+        db.create_table(u'core_autrnoticeterm', (  # @UndefinedVariable
             (u'noticeterm_ptr', self.gf('django.db.models.fields.related.OneToOneField')(to=orm['core.NoticeTerm'], unique=True, primary_key=True)),
         ))
-        db.send_create_signal('core', ['AutrNoticeTerm'])
+        db.send_create_signal('core', ['AutrNoticeTerm'])  # @UndefinedVariable
 
         # Adding model 'DomnNoticeTerm'
-        db.create_table(u'core_domnnoticeterm', (
+        db.create_table(u'core_domnnoticeterm', (  # @UndefinedVariable
             (u'noticeterm_ptr', self.gf('django.db.models.fields.related.OneToOneField')(to=orm['core.NoticeTerm'], unique=True, primary_key=True)),
         ))
-        db.send_create_signal('core', ['DomnNoticeTerm'])
+        db.send_create_signal('core', ['DomnNoticeTerm'])  # @UndefinedVariable
 
         # Adding model 'EcolNoticeTerm'
-        db.create_table(u'core_ecolnoticeterm', (
+        db.create_table(u'core_ecolnoticeterm', (  # @UndefinedVariable
             (u'noticeterm_ptr', self.gf('django.db.models.fields.related.OneToOneField')(to=orm['core.NoticeTerm'], unique=True, primary_key=True)),
         ))
-        db.send_create_signal('core', ['EcolNoticeTerm'])
+        db.send_create_signal('core', ['EcolNoticeTerm'])  # @UndefinedVariable
 
         # Adding model 'EpoqNoticeTerm'
-        db.create_table(u'core_epoqnoticeterm', (
+        db.create_table(u'core_epoqnoticeterm', (  # @UndefinedVariable
             (u'noticeterm_ptr', self.gf('django.db.models.fields.related.OneToOneField')(to=orm['core.NoticeTerm'], unique=True, primary_key=True)),
         ))
-        db.send_create_signal('core', ['EpoqNoticeTerm'])
+        db.send_create_signal('core', ['EpoqNoticeTerm'])  # @UndefinedVariable
 
         # Adding model 'LieuxNoticeTerm'
-        db.create_table(u'core_lieuxnoticeterm', (
+        db.create_table(u'core_lieuxnoticeterm', (  # @UndefinedVariable
             (u'noticeterm_ptr', self.gf('django.db.models.fields.related.OneToOneField')(to=orm['core.NoticeTerm'], unique=True, primary_key=True)),
         ))
-        db.send_create_signal('core', ['LieuxNoticeTerm'])
+        db.send_create_signal('core', ['LieuxNoticeTerm'])  # @UndefinedVariable
 
         # Adding model 'PeriNoticeTerm'
-        db.create_table(u'core_perinoticeterm', (
+        db.create_table(u'core_perinoticeterm', (  # @UndefinedVariable
             (u'noticeterm_ptr', self.gf('django.db.models.fields.related.OneToOneField')(to=orm['core.NoticeTerm'], unique=True, primary_key=True)),
         ))
-        db.send_create_signal('core', ['PeriNoticeTerm'])
+        db.send_create_signal('core', ['PeriNoticeTerm'])  # @UndefinedVariable
 
         # Adding model 'ReprNoticeTerm'
-        db.create_table(u'core_reprnoticeterm', (
+        db.create_table(u'core_reprnoticeterm', (  # @UndefinedVariable
             (u'noticeterm_ptr', self.gf('django.db.models.fields.related.OneToOneField')(to=orm['core.NoticeTerm'], unique=True, primary_key=True)),
         ))
-        db.send_create_signal('core', ['ReprNoticeTerm'])
+        db.send_create_signal('core', ['ReprNoticeTerm'])  # @UndefinedVariable
 
 
     def backwards(self, orm):
         # Deleting model 'Thesaurus'
-        db.delete_table(u'core_thesaurus')
+        db.delete_table(u'core_thesaurus')  # @UndefinedVariable
 
         # Deleting model 'Term'
-        db.delete_table(u'core_term')
+        db.delete_table(u'core_term')  # @UndefinedVariable
 
         # Deleting model 'TermLabel'
-        db.delete_table(u'core_termlabel')
+        db.delete_table(u'core_termlabel')  # @UndefinedVariable
 
         # Deleting model 'Notice'
-        db.delete_table(u'core_notice')
+        db.delete_table(u'core_notice')  # @UndefinedVariable
 
         # Deleting model 'NoticeImage'
-        db.delete_table(u'core_noticeimage')
+        db.delete_table(u'core_noticeimage')  # @UndefinedVariable
 
         # Deleting model 'NoticeTerm'
-        db.delete_table(u'core_noticeterm')
+        db.delete_table(u'core_noticeterm')  # @UndefinedVariable
 
         # Deleting model 'AutrNoticeTerm'
-        db.delete_table(u'core_autrnoticeterm')
+        db.delete_table(u'core_autrnoticeterm')  # @UndefinedVariable
 
         # Deleting model 'DomnNoticeTerm'
-        db.delete_table(u'core_domnnoticeterm')
+        db.delete_table(u'core_domnnoticeterm')  # @UndefinedVariable
 
         # Deleting model 'EcolNoticeTerm'
-        db.delete_table(u'core_ecolnoticeterm')
+        db.delete_table(u'core_ecolnoticeterm')  # @UndefinedVariable
 
         # Deleting model 'EpoqNoticeTerm'
-        db.delete_table(u'core_epoqnoticeterm')
+        db.delete_table(u'core_epoqnoticeterm')  # @UndefinedVariable
 
         # Deleting model 'LieuxNoticeTerm'
-        db.delete_table(u'core_lieuxnoticeterm')
+        db.delete_table(u'core_lieuxnoticeterm')  # @UndefinedVariable
 
         # Deleting model 'PeriNoticeTerm'
-        db.delete_table(u'core_perinoticeterm')
+        db.delete_table(u'core_perinoticeterm')  # @UndefinedVariable
 
         # Deleting model 'ReprNoticeTerm'
-        db.delete_table(u'core_reprnoticeterm')
+        db.delete_table(u'core_reprnoticeterm')  # @UndefinedVariable
 
 
     models = {