Replace usage of patient.measure_id with patient.measure_ids

#### Story ####
  - https://www.pivotaltracker.com/story/show/60403654

#### Notes ####
  - Updated router to access a patient's <code>measure_ids</code> attribute instead of <code>measure_id</code>
  - All remaining references to patient's <code>measure_id</code> attribute exists in legacy Patient List and HTML Report views and corresponding templates, which are currently deprecated