3.4.0

Changelog:

• Make reporters optional
• Send metrics to DataDog in batches
• Add Travis CI

3.3.0

Changelog:

• Send usage metrics to DataDog (configurable from the client)

3.2.0

Changelog:

• Use unix timestamp to marshal timestamps instead of ISO strings

3.1.0

Changelog:

• Use fully customised endpoint without /v1/batch postfix
• Use X-API-Key header for authorisation