fail on canonical zone id not detected (#94)

* fail on canonical zone id not detected

* propagate error for logging

* improve logging messages

* use error instead of debug

* add space after colon

Merge pull request #88 from zalando-incubator/bugfix/safe-resource-re…

…cords

Safely handle records without ResourceRecords

Merge pull request #86 from zalando-incubator/feat/support-a-record

support plain A record if ingress is using IP

Merge pull request #66 from zalando-incubator/update-readme

update docs

Merge pull request #42 from linki/node_ports2

expose DNS entries for node port services

Merge pull request #49 from linki/update_version

update documented version to v0.4.0

Merge pull request #34 from zalando-incubator/pagination

implement pagination for aws rrs and lb

Merge pull request #39 from linki/fix/google

fix a bug that broke updating records

Merge pull request #32 from zalando-incubator/fix/last-record-not-del…

…eted

process all hosted zones

Merge pull request #27 from zalando-incubator/fix/support-for-elbv2

Fix/support for elbv2