Change LocalStack of batches from global to client-local in storage#990

Merged

dhermes merged 3 commits intogoogleapis:masterfrom dhermes:storage-move-stack-to-client

Jul 21, 2015

+202-47

Commits on Jul 20, 2015

Commits on Jul 21, 2015

Adding comment about using _connection in storage.blob.
dhermes
committed