UC-142 Make sure the first message on a wall isn't treated differently

Worked around some strange logic that initialized new walls. Also made some style guideline changes.

https://wikia-inc.atlassian.net/browse/UC-142
The following code keeps this method from being run with the same notification twice. It was doing this before due to a convoluted path and I'm pretty sure it was unintentional. Keeping this from happening is what is gets the email and notification to work.