fix single quotes and double quotes
Repeat namespace definition inside bundle

As in
https://github.com/lucmoreau/ProvToolbox/blob/master/prov-n/src/test/res
ources/prov/bundles1.provn
Work-around for validation

Include dummy attributes for each namespace so that validation passes
(bundle and namespace handling need to be checked with the
ProvValidator developers).
Update serialisations
Merge pull request #2 from cmaumet/bundleProvenance

Fix validation (work-around)