Remove South dependencies

coin/settings.py

@@ -154,7 +154,7 @@ INSTALLED_APPS = (
     # Uncomment the next line to enable admin documentation:
     #'django.contrib.admindocs',
     'polymorphic',
-    'south',
+    # 'south',
     'autocomplete_light', #Automagic autocomplete foreingkey form component
     'activelink', #Detect if a link match actual page
     'coin',

requirements.txt

@@ -1,5 +1,4 @@
-Django==1.6.4
-South==0.8.4
+Django==1.7
 psycopg2==2.5.2
 python-ldap==2.4.15
 django-ldapdb==0.3.2
@@ -9,6 +8,6 @@ django-autocomplete-light==2.0.0a8
 reportlab==2.5
 django-activelink==0.4
 html2text
-django-polymorphic==0.5.5
+django-polymorphic==0.5.6
 -e git+https://github.com/jmacul2/django-postgresql-netfields@2d6e597c3d65ba8b0e1f6e3183869216e990e915#egg=django-netfields
 -e git+https://github.com/chrisglass/xhtml2pdf@a5d37ffd0ccb0603bdf668198de0f21766816104#egg=xhtml2pdf-master