Merge branch 'master' of https://github.com/nmashton/biab
Merge branch 'master' of https://github.com/nmashton/biab
Merge branch 'master' of https://github.com/nmashton/biab
Merge branch 'master' of https://github.com/nmashton/biab
Warning labels for datapackages only show up when there is a datapackage
for datasets.

fixes #25 on github
openspending property now set to openspending url
added a openspendingSlug function to get the slug of the openspending
property
Visualizations now use the openspending property of datasets

Fixes #27 on github
Merge pull request #38 from mihi-tr/master

Fixes