* src/nb/LAST_UPDATED
Updated to 1464 by make sync.
* src/nb/book/appb.xml
Deleted in r1449 and replaced by appc.xml in r1450.
* src/nb/book/appc.xml
Merged r1440. Moved to appb.xml in r1450 and replaced by appd.xml in
r1451. Merged r1452, r1453.
* src/nb/book/appd.xml
Gone, as it was renamed to appc.xml in r1451.
* src/nb/book/book.xml
Merged r1449, r1450, r1451.
* src/nb/book/ch00.xml
Merged r1460.
* src/nb/book/ch02.xml
Merged r1433, r1442.
* src/nb/book/ch05.xml
Merged r1433, r1443, r1446.
* src/nb/book/ch06.xml
Merged r1433.
* src/nb/book/ch07.xml
Merged r1442, r1444, r1448, r1456, r1457, r1458.
* src/nb/book/ch09.xml
Merged r1433, r1443, r1444, r1449.
* src/nb/Makefile
(BOOKFILES, BDFILES): Removed appd.xml .