Change update frequency to a dropdown list based on ANZLIC

http://www.giconnections.vic.gov.au/content/docs/anzlic/chap4402.htm
Fix licence and python namespace
Add additional fields for organisation: telephone/email/homepage/jurisdiction
Add additional fields for organisation: telephone/email/homepage/jurisdiction
gmd export
add fields of research/geospatial topics
add fields of research/geospatial topics input/output
add ckan patch enhancements
fix tags
add vcard
Merge branch 'develop' of github.com:datagovau/ckanext-agls