Added resource web services for information, informationneeds and
information providers based on jersey including initial grizzly test.

Added Information*Resource classes implementing the jax-rs services.
Added dependency for jersey and grizzly.
Configured web.xml for jersey.
Added initial test for InformationProviderResource.
Refactored Analyzer and InformationProvider interface using more general
types.
Removed multiplicity from information type.
Implemented interface methods of JavaJaxRsProvider and
RefinementProvider to fulfill tests.