Bumping version before the release

Merge pull request ebowman#11 from zalando/ebowman#10-Async-actions

ebowman#10, refactor: Actions made async

Merge pull request ebowman#9 from zalando/ebowman#8-Configuration-in-…

…controller

ebowman#8, refactor: Added configuration parameter to the controller

Merge pull request ebowman#7 from zalando/enums_for_headers

Enums for headers