v0.1.6 breaks existing tests

[bremoran]

Removing the definition of NL causes existing tests not to compile.

fa5e421?diff=unified#diff-798846f44ff6b4b0c228a058d7c3e149L23

cc @PrzemekWirkus

[PrzemekWirkus]

Patch released with version v0.1.7.

[bremoran]

Thank you, this patch resolves the issue.