WIP: This fails on running tests for: accumulate

I'm screwing up the `Makefile`. @wilmoore would you mind taking a look at this?

```bash
# ...
running tests for: gigasecond
.

Finished in 0.004 seconds
1 test, 1 assertion, 0 failures, 0 skipped

running tests for: git
gitcp: git/git_test.spec.js: No such file or directory
make[1]: *** [test-assignment] Error 1
make: *** [test] Error 1
```