improve node.name parsing, fix silent errors

[hhsnopek]

closes #27

[coveralls]

Coverage decreased (-43.8%) to 56.25% when pulling 69c20b7 on carrot:master into 3d660b6 on reshape:master.

[coveralls]

Coverage decreased (-0.9%) to 99.107% when pulling c492c03 on carrot:master into 3d660b6 on reshape:master.

[jescalan]

Looking great so far, thank you! Could you take a look at that coverage decrease?

[coveralls]

Coverage remained the same at 100.0% when pulling e2a801a on carrot:master into 3d660b6 on reshape:master.

[hhsnopek]

@jescalan coverage has been restored to 💯