Bump django-appconf from 1.0.1 to 1.0.3

Bumps [django-appconf](https://github.com/django-compressor/django-appconf) from 1.0.1 to 1.0.3.
- [Release notes](https://github.com/django-compressor/django-appconf/releases)
- [Changelog](https://github.com/django-compressor/django-appconf/blob/develop/docs/changelog.rst)
- [Commits](django-compressor/django-appconf@v1.0.1...1.0.3)

Signed-off-by: dependabot[bot] <support@dependabot.com>

requirements.txt

@@ -6,7 +6,7 @@ celery==3.1.19
 dj-database-url==0.3.0
 Django==1.9
 django-absoluteuri==1.1.0
-django-appconf==1.0.1
+django-appconf==1.0.3
 django-bootstrap-form==3.2
 django-celery==3.1.17
 django-contrib-comments==1.7.1