Merge branch 'develop' into docs

# Conflicts:
#	docs/site/examples/cpp/consume.cpp
#	docs/site/examples/cpp/consume_dataset.cpp
#	docs/site/examples/cpp/metadata.cpp
#	docs/site/examples/cpp/pipeline.cpp
#	docs/site/examples/cpp/produce.cpp
#	docs/site/examples/cpp/query.cpp