Added public files

Roughly added all public files. Probably missed some, though.
diff --git a/std/tray.c b/std/tray.c
new file mode 100644
index 0000000..df47955
--- /dev/null
+++ b/std/tray.c
@@ -0,0 +1,60 @@
+// MorgenGrauen MUDlib               
+//
+// tray.c -- container standard object
+//
+// $Id: tray.c 7804 2011-07-10 20:37:52Z Zesstra $
+
+// The most general object class. It defines the really basic functions.
+//
+// This object should understand the properties short, long, info, read_msg,
+// value, weight.
+//
+// weight is given in grams, 1 kilogram (kg) = 1000 grams (g) = 1 old weight
+// unit
+#pragma strong_types
+#pragma save_types
+#pragma no_clone
+#pragma pedantic
+#pragma range_check
+
+inherit "/std/thing/properties";
+inherit "/std/thing/moving";
+inherit "/std/thing/commands";
+inherit "/std/thing/language";
+inherit "/std/container/light";
+inherit "/std/container/restrictions";
+inherit "/std/tray/description";
+inherit "/std/thing/envchk";
+
+#include <properties.h>
+#include <wizlevels.h>
+#include <defines.h>
+
+protected void create()
+{
+  properties::create();
+  commands::create();
+  light::create();
+  description::create();
+  restrictions::create();
+  envchk::create();
+  SetProp(P_TRAY,1);
+  SetProp(P_PREPOSITION, "auf");
+  SetProp(P_SOURCE_PREPOSITION, "von");
+  SetProp(P_DEST_PREPOSITION, "auf");
+}
+
+protected void create_super() {
+  set_next_reset(-1);
+}
+
+/*
+void init() 
+{
+  commands::init();
+  description::init();
+}
+*/
+
+void reset()
+{}