edx/configuration — pull request #544 by wedaly (2013-12-13 14:27:27+00:00)
Title: Lowered ORA minimum submissions for ML and peer grading

To make testing easier in the sandbox, require only 4 essays to start ML or peer grading.

The ML grader requires at least one positive/negative example for each rubric category, but I've been able to create models for the demo course with as few as 4 essays.

@stephensanchez @jarv