Merge branch 'release/0.6.7' into develop
Update slumber/test.py

The model update operation should support the testing.
Update slumber_examples/tests/mock_client.py

Add the test case for mocked update operator
Update slumber_examples/tests/mock_client.py
Added `update` method to mock instances to make writing tests using it
simpler.
Bumped version number.
Merge branch 'release/0.6.8'
Merge branch 'release/0.6.8' into develop
Instantiate FakeClient every times.
Problem: Singleton of Fakeclient keeps error state of previous web call which
will eventually raise again on the subsequent call no matter if it is success
or not.
Merge branch 'develop' of https://github.com/ruxo/django-slumber into develop

Conflicts:
	slumber/connector/ua.py
Instantiate FakeClient every times.

Problem: Singleton of Fakeclient keeps error state of previous web call which will eventually raise again on the subsequent call no matter if it is success or not.
Change the instance cache to be thread safe.
Bumped version number.
Merge branch 'release/0.6.9'
Merge branch 'release/0.6.9' into develop
Fixed a bug in the caching code that meant that the cache never had any
data added to it.
The _Operations test container doesn't really need to operate like
a full standard Python container.
Updated the Django 1.0 install with a download link.
The create operation now adds a `pk` data field in the root which can be used to fetch the primary key value that was issued.
Allow a setting `SLUMBER_LOCAL_PREFIX` to be used to override the local
prefix calculated from the service name for older configurations that
don't make use of a service name.