Log Message:
Update to 8.4.7-P1
- Fix ${MASTER_SITES}
- Fix permissions on installed html files

BIND changes:
1750.	[cleanup]	Add "End of Life" notices.
1749.	[security]	Use arc4 rather than LC NSID for QID RNG. [RT #17034]
1719.   [port]          HPUX-IA64 support.
1716.   [port]          solaris: poll() support.
1715.   [port]          solaris: uses Sun's md5 implementation.
1712.   [bug]           turning off non-blocking i/o was broken.
1700.   [port]          Use closefrom() if available.

See CHANGES for all the details.