Sketchy cache populating code.
Better cache populating.
Better labels on buttons.
More options for populating cache.
esri health code
Update GeoDataCollection.js

forgot to check it is defined.
Randomize order of requests.
Don't show populate cache controls by default.
Merge pull request #383 from NICTA/esriHealth

esri health code
Merge pull request #382 from NICTA/populateCache

Populate cache