Delete doesn't invalidate the cache

[nephlm]

If you instantiate NoDB and set cache to True, then you can save and object and delete the object.

If you load the object at at this point, the deleted object will be returned since it's still in the cache. Delete is not cache aware; it deletes from the s3 bucket, but doesn't update the cache.

nodb=NoDB()
nodb.cache=True
nodb.index = 'name'
nodb.save({'name': 'jeff', 'age': 19})
nodb.delete('jeff')
nodb.load('jeff') #=> {'name': 'jeff', 'age': 19}

That's probably not the expected behavior.

[bendog]

should probably start by writing a test case for this

[bendog]

Merged into master, waiting on PyPi update