adapted NeedManagementService to use linkedDataService for obtaining need rdf to send to matcher
Merge branch 'devel' into feat-linkeddata-js
minor fix
Merge branch 'devel' into feat-linkeddata-js
Merge branch 'devel' into feat-linkeddata-js
fixed wonMessageDecoder so it preserves the hasGraph triples in the default graph
Merge branch 'devel' of github.com:researchstudio-sat/webofneeds into devel