moved typedefs to beginning of files to solve some include problems

splitted authenticator to have a separate implementation for each auth_method_t
using va_copy to clone va_lists, should fix proplems on AMD64
some other cleanups

src/charon/threads/scheduler.h

@@ -24,21 +24,21 @@
 #ifndef SCHEDULER_H_
 #define SCHEDULER_H_
 
-#include <types.h>
-
 typedef struct scheduler_t scheduler_t;
 
+#include <types.h>
+
 /**
  * @brief The scheduler thread is responsible for timed events.
- * 
+ *
  * The scheduler thread takes out jobs from the event-queue and adds them
  * to the job-queue.
- * 
+ *
  * Starts a thread which does the work, since event-queue is blocking.
- * 
+ *
  * @b Constructors:
  *  - scheduler_create()
- * 
+ *
  * @ingroup threads
  */
 struct scheduler_t {