Add Django REST Framework to dependencies

Signed-off-by: Michal Čihař <michal@cihar.com>

docs/admin/install.rst

@@ -34,6 +34,8 @@ django_compressor
     https://github.com/django-compressor/django-compressor
 django-crispy-forms (>=1.4.0)
     http://django-crispy-forms.readthedocs.org/
+Django REST Frameword (>=3.3)
+    http://www.django-rest-framework.org/
 libravatar (optional for federated avatar support)
     https://pypi.python.org/pypi/pyLibravatar
 pyuca (>= 1.1) (optional for proper sorting of strings)

requirements.txt

@@ -9,3 +9,4 @@ python-social-auth>=0.2.0
 django-crispy-forms>=1.4.0
 oauthlib>=0.6.3
 django_compressor>=1.5.0,!=2.0
+djangorestframework>=3.3

weblate/requirements.py

@@ -210,6 +210,16 @@ def get_versions():
         '1.5',
     ))
 
+    name = 'djangorestframework'
+    url = 'http://www.django-rest-framework.org/'
+    mod = get_version_module('rest_framework', name, url)
+    result.append((
+        name,
+        url,
+        mod.__version__,
+        '3.3',
+    ))
+
     return result