Remove query string from tracking (bug 917741)
Add message for future updates of tracking code
Track events in GA (bug 903056)
Merge pull request #288 from muffinresearch/add-events-for-ga

Track events for GA (bug 903056)
Add back in tracking of query-string
Merge pull request #294 from muffinresearch/dont-filter-qstring-for-tracking

Add back in tracking of query-string
Bubble up error codes to devs (bug 846818)

This also cleans up the use of _error()
Merge pull request #293 from kumar303/errors

Bubble up error codes to devs (bug 846818)