Added Mine & Caverns raise & lower functionality

Added Mine & Caverns raise & lower functionality.  Revamped Level 1 events to match PnP.  Updated Level 1: Core.  Added new Footcatcher trap type. Added Underwater heartbeat to Glop Lake Underwater.  Full compile.

_module/nss/ra_lvl01_onexit.nss

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+//::////////////////////////////////////////////////////////////////////////////
+/*//
+
+    Level 1: The Lair of the Dung Beast
+        onExit script
+            ra_lvl01_onexit.nss
+
+    Wandering Monsters: Check once per 30 minutes on 1d20
+
+    Detections: Faint evil from the whole place; slightly more to the south east.
+
+    Continuous Effects: The stench of this level requires all characters to make
+    a Fortitude save (DC 10) upon entering the level and every 30 minutes
+    thereafter or all rolls are at –2 morale penalty due to the distraction
+    caused by the overpowering smell.
+
+*///
+//::////////////////////////////////////////////////////////////////////////////
+
+
+void main()
+{
+//:: Get the entering object (usually a PC)
+    object oPC      = GetExitingObject();
+
+//:: Clears Level 1 stench message int var,
+//:: so it will show up again next time they enter
+    DelayCommand(0.0f,DeleteLocalInt(oPC, "DO_ONCE__" + GetTag(OBJECT_SELF)));
+}
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