* src/vm/loader.c (load_class_from_classloader): Add call to jvmti

* src/vm/loader.c (load_class_from_classloader): Add call to jvmti
	Class Load and Prepare event.

* src/native/jni.c (RegisterNatives): Add comment for calling jvmti
	Native Method Bind event.

* src/native/vm/VMClassLoader.c (defineClass): Add call to jvmti
	Class File Load Hook event.

* src/native/vm/VMObject.c (wait): Add call to jvmti Monitor Wait
	and Waited event.

* src/native/native.c (native_resolve_function): Add call to jvmti
	Native Method Bind event.

* src/native/jvmti/cacaodbg.c (jvmti_ClassFileLoadHook): new function
	to supprt event.
	(jvmti_ClassLoadPrepare): idem
	(jvmti_MonitorContendedEntering): idem
	(jvmti_MonitorWaiting): idem
	(jvmti_ThreadStartEnd): idem
	(jvmti_NativeMethodBind): idem

* src/native/jvmti/cacaodbg.h: Add function headers for
	jvmti_ClassFileLoadHook, jvmti_ClassLoadPrepare,
	jvmti_MonitorContendedEntering, jvmti_MonitorWaiting,
	jvmti_ThreadStartEnd, jvmti_NativeMethodBind.

* src/native/jvmti/jvmti.c (execute_callback): Add support for Class
	File Load Hook event.
	(GetOwnedMonitorInfo): Adapt lock record iteration to new
	data structure.
	(GetCurrentContendedMonitor): idem

* src/threads/native/lock.c (lock_monitor_enter): Add call to jvmti
	Monitor Contended Enter and Entered event

* src/threads/native/threads.c (threads_startup_thread): replace
	breakpoint by direct call to jvmti Thread Start/End event

* src/cacaoh/headers.c add dummy functions jvmti_ThreadStartEnd,
	jvmti_ClassLoadPrepare and jvmti_MonitorContendedEntering