Land b1_4_smallfix onto b1_4 (20040804_1301)

Land b1_4_smallfix onto b1_4 (20040804_1301)
- use transno after validating reply (3892)
- use different name for 2nd ptlrpcd thread (3887)
- fix mds_postrecov to initialize import for llog ctxt (3121)
- be sure to send a reply for a CANCEL rpc with bad export (3863)
- don't allow enqueue to complete on a destroyed export (3822)
- down write_lock before checking llog header bitmap (3825)
- recover from lock replay timeout (3764)
- replace some LBUG about llog ops with error handling (3841)
- add libwrap support for the TCP acceptor (3996)
- install man pages and include them in rpms (3100)
- add new init script for (un)mounting lustre filesystems (2593)
- run chkconfig in %post for init scripts (3701)
- drop scimac NAL (unmaintained)