Fixing credential caching issue when using GridFS
Fixing credential caching issue when using GridFS

oddjobz/txmongo,inspectlabs/txmongo,claytondaley/mongo-async-python-driver,IlyaSkriblovsky/txmongo,psi29a/txmongo,claytondaley/mongo-async-python-driver,twisted/txmongo,inspectlabs/txmongo