Merge pull request #63 from LocalData/tiles

Proxy tile requests to the configured tile server
Add tileserver base (needed for tests)
Improvements to CSV exports
Quotes don't work. Need to rethink
Merge pull request #69 from LocalData/export

Add address field to CSV export
Handle latest param
Add test for latest endpoint
Improve test so that it doesn't pass by mistake :-"
More accurate usage comment.
Merge pull request #70 from LocalData/latest

Add public API for getting latest results only by CSV
Add moment
Convert date to ISO8601
We aren't doing fancy date stuff, so let's remove the moment dependency
Remove errant moment
Merge pull request #73 from LocalData/export-date

Export: convert the date to ISO8601 format
Fix duplicate settings
Re-add missing settings
Re-add AWS
Test the responseCount field
Test the responseBounds field