PullRequest:modify event style like issue event
Issue: fixed a bug

* fixed a bug that wrong issue events were made by when a issue edited.
Merge branch `bugfix/issue-edit` of whiteship/yobi

from pull request 440
Main:Change review icon color on main notification
Merge branch `issue/pullrequest-event-style` of insanehong/hive

from pull request 431
Merge branch `issue/review-color` of insanehong/hive

from pull request 441