Treat users with equal logins and servers as equal.
Merge pull request #106 from jacksonh/commentTimes

Add date/times to comment objects.
Use the objectID for equivalence and hashing if it exists.
Fix a lulzy test.
Document the equality.
Always check the server.
Test that we don't equate a user from th server with a user created in memory.
Merge pull request #102 from octokit/user-equality

Treat users with equal logins and servers as equal.
Add the syncronize action for pull request events
Revert "Add the syncronize action for pull request events"

This reverts commit b7c878a4261ab4e599d95f3971b06704000eeb2a.
Add the synchronizes event for pull request actions.