Bump version and update changelog.

ChangeLog.md

@@ -1,5 +1,8 @@
 # Changelog
 
+## Version 0.9.1
+- Update pinned Django version (only matters if using `requirements.txt`).
+
 ## Version 0.9.0
 - Add LDAP support for checking the validity of a username
 - Allow specifying engine-specific database options

setup.py

@@ -2,7 +2,7 @@ from setuptools import find_packages, setup
 
 setup(
     name='etebase_server',
-    version='0.9.0',
+    version='0.9.1',
     description='An Etebase (EteSync 2.0) server',
     url='https://www.etebase.com/',
     classifiers=[