587 update bzip2 vers 1.0.5 to 1.0.6

Reviewed by: garrett@nexenta.com
Reviewed by: estseg@gmail.com
Reviewed by: damian@wojslaw.pl
Approved by: richlowe@richlowe.net

6828976 Fast Crash Dump
6878030 live crash dump is much slower than reboot dump
6626023 Crash dump size is excessive on large memory machines