Add flagging API.

Increase request timeout to 10 seconds

Closes #3, Closes #4

* abstract-resource:
  Remove utils module
  Apply new resource ctor to APIs
  Fix EventEmitter application to Resource
  Create resource factory for instantiating resources with minimal code duplication

* auth-fix:
  Update test for fixed basic auth header
  Fix auth

* should be base 64 encoded '{{user}}:'
* previously left out colon

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