Merge pull request #28 from rpwll/master

Fixed the testing target
refactored http client into property
added more tests for authorization and repository
added tests and implementations for other two repo methods - added some ideas for future tests as pending
fixed merge issue
Merge pull request #1 from jnjosh/development

HubKit Refactor
Merge pull request #29 from jnjosh/master

Refactoring and testing
Added rake task to generate docs