-fix bug in cache for atlas import/export

-fix some menus
-fixed bug in out transition curves
-detect and remove file:/// in collada
-remove multiscript for now
-remove dependencies on mouse in OS, moved to Input
-avoid fscache from screwing up (fix might make it slower, but it works)
-funcref was missing, it's there now

core/func_ref.h

@@ -0,0 +1,23 @@
+#ifndef FUNC_REF_H
+#define FUNC_REF_H
+
+#include "reference.h"
+
+class FuncRef : public Reference{
+
+	OBJ_TYPE(FuncRef,Reference);
+	ObjectID id;
+	StringName function;
+
+protected:
+
+	static void _bind_methods();
+public:
+
+	Variant call_func(const Variant** p_args, int p_argcount, Variant::CallError& r_error);
+	void set_instance(Object *p_obj);
+	void set_function(const StringName& p_func);
+	FuncRef();
+};
+
+#endif // FUNC_REF_H