More progress on options

 - Both delete and flow direction options are 50% of the way there.
Configurable flow direction & username link complete

 - The flow direction of shouts (whether new shouts show up at the top or bottom of the existing list) is now fully configurable in the settings. Additionally, the text entry box will relocate based on up or down. It will show up above the shout display area if flow direction is up, and vice versa.
 - The username portion of shouts is linked to that user's profile. This can be turned on and off in the settings now.