Merge pull request #8 from VladaPetrovic/master

Databox latest PushAPI changes
Added support for base URL change + two bugfixes
Merge pull request #9 from umajeric/master

Added support for base URL change + two bugfixes
Bumo Guzzle version
Skip broken CI tests (see issue #10)
Typo
Bump version, regenerate documentation, cosmetic fixes
Add composer.lock file