Merge pull request #11 from JDong-rmn/master

Fixed minor typo in README sample code.
Merge pull request #15 from JDong-rmn/KeyPairCollection

Implemented get, create, and destroy methods on acky.ec2.KeyPairCollection.
Implemented instance launcher for acky.ec2.InstanceCollection.
Merge pull request #14 from JDong-rmn/EOPS-5773

Implement instance launching
Created tests for AwsCollection and AwsApiClient