Added Issue Events client interface and corresponding types
test placeholder for IssuesEventsClients
Added api urls for Issues Events
add event id to EventInfo model
Add IssuesEventsClient implementation and integration tests
Add 'correct url' tests for issue events client
Implement IObservableIssuesEventsClient
Add missing xml comments
Using existing User class instead of Actor class
Merge pull request #158 from knunery/issuesEventsApi

Implement Issues Events API