Merge b1_4_newconfig from b1_4 (20051014_0359)

Merge b1_4_newconfig from b1_4 (20051014_0359)
Description: data loss during non-page-aligned writes to a single file from
	     both multiple nodes and multiple threads on one node at same time
Details    : updates to KMS and lsm weren't protected by common lock. Resulting
	     inconsistency led to false short-reads, that were cached and later
	     used by ->prepare_write() to fill in partially written page,
	     leading to data loss.
b=5047

Description: lconf --abort_recovery fails with 'Operation not supported'
Details    : lconf was attempting to abort recovery on the MDT device and not
	     the MDS device
b=7047

Description: add support for EAs (user and system) on lustre filesystems
Details    : it is now possible to store extended attributes in the Lustre
	     client filesystem, and with the user_xattr mount option it
	     is possible to allow users to store EAs on their files also
b=8592

Fix sanity.sh test 56, 65a.