Use CORS for requests to ga.gov.au.
Merge pull request #297 from NICTA/gacors

Use CORS for requests to ga.gov.au.
Add Victoria's CKAN / WMS.
Add notes, bounding box, and licence info.
programmatically get legend from wms
Data Sets -> National Data Sets.
Show only groups containing WMS data sources.

Also use CORS for access data.vic.gov.au.
Merge pull request #304 from NICTA/legendUrl

programmatically get legend from wms
Merge branch 'master' of https://github.com/NICTA/nationalmap into victoria
Move Victorian Government before Data Providers.

Also fix a bug that caused CKAN groups to always be added to the last accordion
group.
Merge pull request #306 from NICTA/victoria

Add a collection based on the WMS data in Victoria's CKAN server
fix for #305
Merge pull request #307 from NICTA/share_fix

fix for #305