LU-362 Fix error path in lu_kmem_init().

LU-362 Fix error path in lu_kmem_init().

When echo client is failed to set up there are memory leaks were
noticed, it is related to missed error handling in some functions.

- Free all caches if lu_kmem_init() failed
- fix error handling in cl_global_init() and ccc_global_init()

Change-Id: Ide9e7ad6d40f99a7fbb4330ba63b168cc408356f
Signed-off-by: Mikhail Pershin <tappro@whamcloud.com>
Reviewed-on: http://review.whamcloud.com/586
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Jinshan Xiong <jay@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>