Merge pull request #6 from cyrille-leclerc/master

Update dependencies and docs for 1.0.2 release
Merge pull request #8 from cyrille-leclerc/master

Support multi-valued attributes (Iterables or arrays) introducing a `query.position` qualifier.
Fix duplicate result output for composite data.
Introduce query.type attribute (e.g. 'gauge', 'counter') and expose it in OutputWriter
Cleanup