LU-1842 quota: t-f changes for new quota

LU-1842 quota: t-f changes for new quota

Added new quota functions in the t-f according to new quota
architecutre, at the same time, old functions are kept for
the interoprability with old server.

two minor defects fixed:
- in facet_up(), add '-x' option to grep for exact matching,
  otherwise this function will not work in single node test;
- missing 'shift' in wait_update_facet();

Test-Parameters: envdefinitions=ENABLE_QUOTA=yes

Signed-off-by: Niu Yawei <niu@whamcloud.com>
Change-Id: I86915976f53af8620679ab267e04beea18dd5cf3
Reviewed-on: http://review.whamcloud.com/4031
Reviewed-by: Yu Jian <yujian@whamcloud.com>
Tested-by: Hudson
Reviewed-by: Johann Lombardi <johann@whamcloud.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>