Provide error message if submission fails.

Fixes kytrinyx/exercism.io#512
Bump version
Adds Clojure, Python and Go extensions to `test_identifiers`
Merge pull request #72 from sgerrand/additional-test-extensions

Adds Clojure, Python and Go extensions to `test_identifiers`
Submit using path rather than filename.

This will allow us to detect which exercise is being submitted. See
kytrinyx/exercism.io#529.
Bump version
Makes #path portable by using File#expand_path
Merge pull request #75 from sgerrand/fixes-broken-travis-ci-build-10349084

Makes #path portable by using File#expand_path
Merge branch 'master' of github.com:kytrinyx/exercism into running_tests_before_submission
Misnomer
classes => files
classes => files
Merge branch 'running_tests_before_submission' of github.com:ben-biddington/exercism into running_tests_before_submission