SDK: Mocks (cloud)

[idokleinman]

Issue by idokleinman
Wednesday Jan 14, 2015 at 02:49 GMT
Originally opened as https://github.com/spark/mobile-sdk-ios/issues/35

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Build a node.js localhost simulated cloud server that responds successfully to all API endpoint calls and saves credentials, generates tokens, stores device IDs, etc.
Modify SparkCloud class so it can receive different endpoint address for dependency injection.
Add a test suite.
(low priority)
can also be used by Android, Phonegap. CC: @nexxy @jensck