Allow exporting of locations file
Merge branch 'master' into location-export
Rewrite the location import/export for new format
Reenable progress bar on import
Make results message more accurate
Don't actually save if there are no updates
Put Drews old TODO back
Remove "update existing" entirely

It was made the default and is something we don't think people would
ever want to uncheck
Refactor progress count tracking
Merge pull request #2008 from dimagi/location-export

Allow exporting of locations file