pull defaultPage from management API, instead of assuming index.html

Just curious if anyone knows why the path is set to "index.html" when it's equal to "/". See line 30 of google_analytics_reports.blocks.inc for details.

This causes the reports to show zero hits for the home page on my site since the path that Google Analytics has recorded for the home page is indeed "/". I would think that others are running into this as well but couldn't find any record of it in the project's issues. Am I just missing something obvious here?

I've commented out this test that starts on line 30 and can confirm that the reports block renders accurate data for the home page.

Thanks.
- Nick