NUBIC/ncs_navigator_core — pull request #2 by yipdw (2012-08-17 18:28:14+00:00)
Title: Make PscParticipant#scheduled_activities use Psc::ScheduledActivity

I'd like to be able to use a simpler interface for getting activity data via PscParticipant. In particular, I'd like to write code like this as part of #2302:

```ruby
sas = activities_from_psc_schedule

sas.each do |sa|
if sa.instrument_label == the_label_i_want
# do something
end
end
```