* Added support for adding a coupon code when deploying a new instance
1.0.9
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* Added is_spot property to the Instance class, now possible to deploy a spot instance * Implemented __str__ method for Instance, Volume and Image Classes, now possible to print instances
1.0.8
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* Added ssh_key_ids property for Volume entity * Added test coverage for ssh_key_ids
1.0.7
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* Fixed the previous bug in a different method
1.0.6
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* Fixed a bug where initializing an instance without ssh keys raises an exception
1.0.5
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* Added an option to set OS volume size and name on instance creation