Issue #2104

1. Current quizzes summary report:
  - order the quizzes alphabetically
  - remove in-video quizzes from the list

2. New report - student scores
  - same content as Student Scores report under Reports menu
  - must filter by username for MOOCs
  - can run for whole class if internal
Merge branch 'master' of http://github.com/Stanford-Online/class2go into dca_new_working2
Merge branch 'master' of http://github.com/Stanford-Online/class2go into dca_new_working2
Added comma separated list input to student scores in-line report.
Add report generation delay back in.
Merge pull request #2119 from Stanford-Online/dca_new_working2

In-line report adjustments (#2104)