Fix yaml syntax in README.md
Merge pull request #68 from davide-ceretti/fix_doc

Fix yaml syntax in README.md
Update the readme to include the supported Django versions fixes #69
Merge branch 'master' of https://github.com/lukebpotato/djangae
Write a ShardedCounterField class
Make sure we don't always hit the first non-empty shard to avoid contention
Add links to README
Merge branch 'master' of https://github.com/jasoncartwright/djangae into jasoncartwright-master

Conflicts:
	README.md
Merge branch 'jasoncartwright-master'
Formatting fixes
Fix an epic bug in ShardedCounter.decrement
Add AppEngineSecurityMiddleware, fix a bug in indexing that was exposed by it
Log warnings if session cookies are not secure and httponly
Add further checks for insecure settings in the security middleware
Update djangae readme to recommend using the AppEngineSecurityMiddleware
Splitting the djangae User model into separate models for:

1. Using the GAE users API, on a SQL database.
2. Using the GAE users API, on a SQL database, but with a custom user model (subclassed from the Djangae one).
3. Using the GAE users API on the Datastore (nonrel permissions models).
4. Using the GAE users API on the Datastore with a custom user model.

Tickle: #49.
Register the correct user model with the Django admin, but only if it's one of the concrete Djangae user models.

Tickle #49.
Remove nonsense TODO.  Add real TODO.

Touch #49.
Starting to add tests for djangae.contrib.auth.
Fix various bits of silliness in the `Meta` classes of the Djangae contrib user models.