Add username parameter to external_report urls.
Add username parameter to external_report urls.

We need this for the HAS Dashboard report for logging features.

[#131758533]

https://www.pivotaltracker.com/story/show/131758533

concord-consortium/rigse,concord-consortium/rigse,concord-consortium/rigse,concord-consortium/rigse,concord-consortium/rigse,concord-consortium/rigse