* Reverts italics-span back to no color.
* Cleans up many extra spaces and indents.
* Adds 'hear' span class.
* Replaces all 'italics' used in heard messages with 'hear'.
About The Pull Request
Adds 'notice' span class to all visible_messages which had no span class, making all those black messages blue.
Why It's Good For The Game
This should help differentiate action-messages from talking-messages in the chat. More actions will be blue, thus black talking-messages should pop out more.
