Branch HEAD

 Branch HEAD
 b=18674
 i=johann
 i=andrew.perepechko
 i=nathan.ruthman
 i=alexey.lyashkov
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 Modified Files:
 	lustre/ChangeLog lustre/include/lustre_import.h
 	lustre/mdt/mdt_handler.c lustre/ptlrpc/import.c
 	lustre/tests/conf-sanity.sh
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Description: client could not reconnect to OST because of an active request.
Details    : The client now retries to reconnect to the same server, if a
	     connect request failed with EBUSY or -EAGAIN. Test case 35b
	     conf-sanity.sh has been created.