[web-nfc] new commits pushed by kenchris

The following commits were just pushed by kenchris to https://github.com/w3c/web-nfc:

* Introduce error event handler and make start not return a promise
  by Kenneth Christiansen
https://github.com/w3c/web-nfc/commit/77711010d7cd6f68b6e0296d84bd406133181c26

* Sync errors with sensor spec
  by Kenneth Christiansen
https://github.com/w3c/web-nfc/commit/aa50e6e193ae3cea7b353a84a3acc14a9752e8f3

Received on Wednesday, 12 December 2018 14:49:56 UTC