Added peek to ClassXController
Dirty commit. Please fix before merging with main repo.
More dirty hacks
Reverted back to non-heroku autograding for regrades
Renamed class_x*.rb to coursera*.rb
Cleaned up autograders.yml format
Cleaned up run_autograder_subprocess. Added HerokuRspecGrader
Fixed a few bugs.

Fixed relative paths for graders
Renamed run_class_x_client
Raise error on non-zero exit code for autograder subprocess
Fixed heroku submission arguments
Made grade_heroku executable
Formatted autograder text for web
Added logger.
Fixed a couple of outdated names
Moved configuration files to config/
Added specs for coursera_client
Added run_local_autograder

Separated subprocess logic into separate file
Hacky first version of HW3Grader
Factored out conf parsing into coursera client
Fixed @halt
Actually fixed it