Move light source and timer types so zero means none

Breaks saves and bones.

include/patchlevel.h

@@ -17,7 +17,7 @@
  * Incrementing EDITLEVEL can be used to force invalidation of old bones
  * and save files.
  */
-#define EDITLEVEL 102
+#define EDITLEVEL 103
 
 /*
  * Development status possibilities.

include/timeout.h

@@ -10,11 +10,12 @@ typedef void (*timeout_proc)(ANY_P *, long);
 
 /* kind of timer */
 enum timer_type {
-    TIMER_LEVEL = 0,   /* event specific to level [melting ice] */
-    TIMER_GLOBAL = 1,  /* event follows current play [not used] */
-    TIMER_OBJECT = 2,  /* event follows an object [various] */
-    TIMER_MONSTER = 3, /* event follows a monster [not used] */
-    NUM_TIMER_KINDS    /* 4 */
+    TIMER_NONE = 0,
+    TIMER_LEVEL = 1,   /* event specific to level [melting ice] */
+    TIMER_GLOBAL = 2,  /* event follows current play [not used] */
+    TIMER_OBJECT = 3,  /* event follows an object [various] */
+    TIMER_MONSTER = 4, /* event follows a monster [not used] */
+    NUM_TIMER_KINDS    /* 5 */
 };
 
 /* save/restore timer ranges */

include/vision.h

@@ -12,8 +12,12 @@
 /*
  * Light source sources
  */
-#define LS_OBJECT 0
-#define LS_MONSTER 1
+enum ls_sources {
+    LS_NONE = 0,
+    LS_OBJECT = 1,
+    LS_MONSTER = 2,
+    NUM_LS_SOURCES
+};
 
 /*
  *  cansee()    - Returns true if the hero can see the location.