using int/bool convention instead of new enum type

src/types.h

@@ -196,11 +196,6 @@ typedef enum {
   TIMEOFDAY      // act when time of day occurs
 } ControlType;
 
-typedef enum {
-  DISABLED,
-  ENABLED
-} EnabledType;
-
 typedef enum {
   XHEAD,         // pump cannot deliver head (closed)
   TEMPCLOSED,    // temporarily closed
@@ -479,7 +474,7 @@ typedef struct             // Control Statement
     double      Setting;   // new link setting
     StatusType  Status;    // new link status
     ControlType Type;      // control type
-    EnabledType isEnabled;   // control enabled?
+    int         isEnabled; // control enabled?
 } Scontrol;
 
 typedef struct             // Field Object of Report Table
@@ -531,7 +526,7 @@ typedef struct                 // Control Rule Structure
 {
     char     label[MAXID+1];   // rule label
     double   priority;         // priority level
-    EnabledType isEnabled;     // is the rule enabled?
+    int      isEnabled;        // is the rule enabled?
     Spremise *Premises;        // list of premises
     Saction  *ThenActions;     // list of THEN actions
     Saction  *ElseActions;     // list of ELSE actions