Added Exoscale as Provider

exoscale: fix boilerplate header

Signed-off-by: Yoan Blanc <yoan.blanc@exoscale.ch>

Oracle Cloud Infrastructure (OCI) DNS provider

Add aws-evaluate-target-health flag

Updating CHANGELOG.md with 'Add aws evaluate target health flag' PR.

This is to add a new `--aws-evaluate-target-health` which allows the
user to override the default EvaluateTargetHealth value (currently set
to `true`) when creating AWS Route53 ALIAS records. To disable, pass
`--no-aws-evaluate-target-health` as outlined in the help page.

Closes https://github.com/kubernetes-incubator/external-dns/issues/627

Signed-off-by: Yoan Blanc <yoan.blanc@exoscale.ch>

fix typo in cloudflare.md

* Remove sed deadline from travis.yml

* Remove sed deadline from travis.yml

* Remove sed deadline from travis.yml

* Set cacheinterval flag to 0 by default and if it is zero don't use cache

* fix: run gofmt -s in go1.11

annotation with upper-case hostnames block further updates

Adds TLS flags for pdns provider

Read hostnames from spec.tls.hosts on Ingress object