Track all comment lifecycle/operations. Closes #5

[shadyvb]

@fjarrett Please review, see #5

[frankiejarrett]

@shadyvb Please see my latest changes and test. Since some blogs may not require user registration to comment, and even some may not require name or e-mail, these scenarios needed to be taken into consideration.

I think my latest commit fully addresses them, but it needs another pair of eyes to test it. Thank you!

[frankiejarrett]

@shadyvb I think we should merge this. But it might be good to have you do a sanity test first just to be sure.

[jonathanbardo]

From my testing, I found that nothing is log when approving or unapproving comments.

[jonathanbardo]

When we are in the comment spam view. There is no action log if a user click on the "not spam" button.

[frankiejarrett]

@jonathanbardo Please test again, I addressed these issues in 2a344cf

[jonathanbardo]

There was a little undefined variable fixed in 9be891c

[jonathanbardo]

@fjarrett This is ready to go from my perspective.