* provider/datadog: Pulls v2 and removes v1 of library go-datadog-api.
See https://github.com/zorkian/go-datadog-api/issues/56 for context.
* Fixes bug in backoff implementation that decreased performance significantly.
* Uses pointers for field types, providing support of distinguishing
between if a value is set, or the default value for that type is
effective.
* provider/datadog: Convert provider to use v2 of go-datadog-api.
* provider/datadog: Update vendored library.
* provider/datadog: Update dashboard resource to reflect API updates.
* Update to latest version of go-datadog-api
* Updates to latest go-datadog-api version, which adds more complete
timeboard support.
* Add more complete timeboard support
* Adds in support for missing timeboard fields, so now we can have nice
things like conditional formats and more.
* Document new fields in datadog_timeboard resource
* Add acceptance test for datadog timeboard changes