Issue #1: Added basic functionality for saving and querying content (without the documentid).
Issue #1: Added unit tests for the handler. Locale fix for concept.
Issue #1: Added a Content class for encapsulating payloads. Removed the null provider and the default encounter type/role.
Issue #1: Formatting
Issue #1: Added a formatCode field to Content. Concept management via format codes.
Issue #1: Added query by encounter type.
Issue #1: Finished the fetchDocument methods.
Issue #1: Various fixes and minor edits.
Issue #1: Added several unit tests for retrieving content.
Issue #1: Removed obsolete string
Issue #1: Finished unit tests for retrieving content
Issue #1: getRawData method for the Content class.
Issue #1: Unit tests for Content.
Issue #1: Added handling for binary files stored at a URL
Merge pull request #2 from jembi/unstructured-data-handler

Unstructured data handler