Added custom Jasmine reporter to output JSON to the test runner file.
Added custom Jasmine reporter to output JSON to the test runner file.

kyroskoh/js-test-tool,edx/js-test-tool,kyroskoh/js-test-tool,edx/js-test-tool,edx/js-test-tool,kyroskoh/js-test-tool,kyroskoh/js-test-tool,edx/js-test-tool