Added TestClasses/-Methods annotation
Added a missing test method
Added a method to download PubChemRDF
Fixed the API method implementation: removed non-existing parameter
Added the remaining missing unit tests
Fixed the BSL docs
Reuse the downloadAsString method, and use application/rdf+xml to actually get RDF not HTML
Merge pull request #34 from egonw/feature/pubchemrdfUpdates

PubChem updates: some fixes, missing unit tests, and a single new API method