Merge pull request #120 from stephenplusplus/master

storage: document createWriteStream. fixes #119
feat: add coveralls for coverage reports
Merge pull request #121 from silvolu/coveralls

feat: add coveralls for coverage reports
Add coverall badge to readme
Merge pull request #123 from silvolu/coveralls

Add coverall badge to readme
datastore: scope Key creation to include NS. fixes #116.
Fixed link for coveralls badge.
datastore: support overriding namespace.
datastore: support namespace overrides & removal.
datastore: tighten up falsy namespace values.
datastore: prefer `namespace` over `ns` naming convention.
datastore: readme: mention default namespace scoping.
datastore: undefined -> null.
Merge pull request #124 from stephenplusplus/namespaces

datastore: scope Key creation to include NS. fixes #116.
test(pubsub): remove from regression tests

pubsub is still experimental and not part of M1
Merge pull request #130 from silvolu/master

test(pubsub): remove from regression tests
storage: support signed urls. fixes #49.
datastore: Use Query for Query test suite. fixes #126.
datastore: query: default to null namespace if not provided.
Merge pull request #132 from stephenplusplus/query-test

Query test