getGridFS from Storage use the default fs prefix instead of the collection name should be used

[scorpjio]

What steps will reproduce the problem?
1.Add a file in a collection named fileStore
2. look into mongo and you should have 3 collections one fileStore, one fs.chunks and one fs.files

What is the expected output? What do you see instead?
Collections should be like this:
fileStore
fileStore.chunks
fileStore.files

On what operating system?
fedora x64

I initially added this issue on the googlecode.