This switches most usages of the pre-1.7 context library to use the
standard library. Remaining usages are in:
app/publisher/main.go
pkg/fs/...
Change-Id: Ia74acc39499dcb39892342a2c9a2776537cf49f1
Related changes:
Split docker-related test-helper functions from pkg/sorted/mongo.
These helper functions are now also used in the pkg/blobserver/mongo
tests too.
Also fixed a typo in a comment in pkg/blob/fetcher.go and a missing variable in
debug output in pkg/blobserver/storagetest/storagetest.go
Addresses http://camlistore.org/issue/127
Change-Id: I8b6f57f9ced066d6f83788fdcc87be6619c65c3c
Conflicts:
pkg/blob/fetcher.go