Allows for moderation from the message index.

• Requires appropriate permissions for each action
• Requires valid session ID, either in the querystring or passed from a form
• Sets up an array of possible actions based on what you can do
• Does not allow stickying if sticky topics are disabled
• Sends notifications if necessary
• Updates all statistics and calls updateLastMesasges when finished
• Redirects back to the board it was called from