General cleanup

Unassigned 11 open tickets

• 35 Add config file new
• 47 Clients can only send messages as their selves new
• 44 Test XML in CWIGA new
• 28 Logging new
• 27 Error handling new
• 37 Make chatterl_serv distributed new
• 38 Specify node to spawn processes on new
• 46 Refactor client poll new
• 48 Refactor group management new
• 49 Review mid_man new
• 12 Fix group shutdown new