Remove Closure-based index page, as it is no longer used.

Change-Id: Ibd24c5785841ad1ff978576c4d83362ea0fd3fde
Merge "Remove Closure-based index page, as it is no longer used."
Rename IndexPageReact to IndexPage

Change-Id: If901a5e9585bb561795c904341b777aa62ad4a26
pkg/blobserver/mongo: Add support for blob storage in MongoDB

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