Refactoring to separate Bugzilla/Github/Jira functionality
Merge pull request #13 from Gonthim/master

Refactoring to separate Bugzilla/Github/Jira functionality
Refactoring: Moved common interface 'Issue' to new package.
Merge pull request #14 from Gonthim/master

Refactoring: Moved common interface 'Issue' to new package.