added SPARQL access support
added verbose logging to QualityAssessment
minor clean-ups
enhanced logging of dummy sink
bigger refactoring to support Spring DI

- removed all manual 'wiring' and applied Springs DI (@Autowired)
- currently the major framework works but all metrics and their tests
  have to be adjusted accordingly
minor config changes
fixed ValidLanguageTag metric
fixed XSDDatatypeCompatibleLiterals
fixed AmountOfTriples metric
fixed CoverageDetail metric
added forgotten beans.xml files
fixed CoverageScope metric
fixed DereferenceableForwardLinks metric
fixed DatasetMetadata metric
fixed InterlinkingCompleteness metric
forgotten Pinpointer changes
some further changes forgotten to commit
fixed PopulationCompleteness metric