graphql-0.2 release tarball lacks data files required to run the test suite

Citing from http://hydra.cryp.to/build/1169361/log/raw:

```
Running 1 test suites...
Test suite golden: RUNNING...
kitchen-sink.graphql: FAIL
  Exception: ./tests/data/kitchen-sink.graphql: openFile: does not exist (No such file or directory)

1 out of 1 tests failed (0.00s)
Test suite golden: FAIL
```
