SDK update.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Set Loading status only when actually loading.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Set 'OK' status when imported is assigned.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Remove duplicate code.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Add some more tests.

Signed-off-by: John McCutchan <john@johnmccutchan.com>
Add TextMapLoader, NoopImporter, and ImageMapLoader

Along with tests.

Signed-off-by: John McCutchan <john@johnmccutchan.com>