added license information

Change-Id: I29048e355989f736c9abe311bedd966ad862da14
updated license information

Change-Id: Iac5204725c6ebd7ab9be1ddf5e02cc08c992a240
Introduce komma:child property.

Change-Id: I11e4527db0c4280281c26bacb97c11afe81b7486
Allow to specify different read and modify contexts for SPARQL updates.

Change-Id: I610e72ea596c39e2aa613626b193ee2ef4f28c18