Bug fixes and improvements

- Bugfix: The configuration collection can not have a key for the
values.
- Bugfix: It was possible, that the shutdown handler list was init to
late.
+ ConfigDB: It is now possible to write and therefore to change a
configuration value.
+ Added a few more message names for the logger.

Shutdown/Init.go

@@ -4,8 +4,11 @@ import "container/list"
 import "os/signal"
 import "os"
 
-func InitShutdown() {
+func init() {
 	shutdownHandlers = list.New()
+}
+
+func InitShutdown() {
 
 	// Apply the shutdown handler:
 	signal.Notify(shutdownSignal, os.Interrupt, os.Kill)