MkIssueEvents.java:139-144: Make it possible to set the...

The puzzle `1063-0509ffcb` in [`src/main/java/com/jcabi/github/mock/MkIssueEvents.java`](https://github.com/jcabi/jcabi-github/blob/master/src/main/java/com/jcabi/github/mock/MkIssueEvents.java) (lines 139-144) has to be resolved: Make it possible to set the "assignee" field for "assigned"/"unassigned" events. Make it possible to set the "milestone" field for "milestoned"/"demilestoned" events. Make it possible to set the "rename" field for "renamed" events. Make it possible to set the "commit_id" field for events related to commits. See https://developer.github.com/v3/issues/events/ for details.

The puzzle was created by Chris Rebert on 15-Apr-15.

Estimate: 30 minutes, role: IMP.

If you have any technical questions, don't ask me, submit new tickets instead. The task will be "done" when the problem is fixed and the text of the puzzle is removed from the source code. Here is more about [PDD](http://www.yegor256.com/2009/03/04/pdd.html).