EX-3430: Improvement in HP config for client mount

EX-3430: Improvement in HP config for client mount

Use custom lustre-client resource agent for client
mount/unmount which in turn uses the pumount utility
to unmount. This makes sure the client is unmounted
gracefully while stopping the resource.

Remove stratagem-hp-convert.sh as it is no longer used.

Test-Parameters: trivial

Change-Id: Idc5fc2a59e4783a4011fc65a0ae3d69281b1a20f
Signed-off-by: Gaurang Tapase <gtapase@ddn.com>
Reviewed-on: https://review.whamcloud.com/44547
Reviewed-by: Nathaniel Clark <nclark@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: John L. Hammond <jhammond@whamcloud.com>