Add output and timing to insert discussion questions rake task.
Add output and timing to insert discussion questions rake task.

Reduce slice size. This was the fastest overall in inserting 10,000
rows.

Coursemology/coursemology2,cysjonathan/coursemology2,Coursemology/coursemology2,Coursemology/coursemology2,Coursemology/coursemology2,Coursemology/coursemology2,Coursemology/coursemology2,cysjonathan/coursemology2,cysjonathan/coursemology2,Coursemology/coursemology2