Support ramsey/uuid 4.0

Merge pull request #6 from NielsHoiting/master

Support uuid 4.0

Iterative acquire fix for non-retry

Merge pull request #4 from TimGroenen/master

Fix #3

Retry iteratively instead of recursively

Merge pull request #2 from TimGroenen/master

Changed acquire to an iterative funtion

First release

Now that tests have been added, I'm confident enough in this library to release it as stable.

Initial release

Initial package release.

Warning: this package has not been tested in production yet, so I don't recommend anyone using it yet.