Revise header files formatting.

Finish tagging BBINDABLE functions.
Modify forward-character to handle combined Unicode.
Bump up version number and set default program name as 'ue'.

retcode.h

@@ -1,20 +1,23 @@
+/* retcode.h -- */
 #ifndef __RETCODE_H__
 #define __RETCODE_H__
 
-#ifdef	FALSE
-#error "FALSE shouldn't be defined"
-#undef	FALSE
+#ifdef  FALSE
+# error "FALSE shouldn't be defined"
+# undef FALSE
 #endif
-#ifdef	TRUE
-#error "TRUE shouldn't be defined"
-#undef	TRUE
+
+#ifdef  TRUE
+# error "TRUE shouldn't be defined"
+# undef TRUE
 #endif
 
 typedef enum {
-	FALSE,			/* 0, false, no, bad, etc.		*/
-	TRUE			/* 1, true, yes, good, etc.		*/
+    FALSE,          /* 0, false, no, bad, etc.      */
+    TRUE            /* 1, true, yes, good, etc.     */
 } boolean ;
 
-#define ABORT 2		/* 2, death, ^G, abort, etc.	*/
+#define ABORT 2     /* 2, death, ^G, abort, etc.    */
 
 #endif
+/* end of retcode.h */