Cal-CS-61A-Staff/ok — pull request #63 by albert12132 (2014-08-11 00:15:05+00:00)
Title: Migrate unlocking feature from old autograder.

This pull requests implements the unlocking functionality from the old autograder. The `Protocol` is not yet implemented (I'll do this in a separate pull request).

Some code for the grading protocol has also been rewritten to be more consistent (including the introduction of an `OkConsole` abstract class).