SCE-327: Need to wait until memcached works before start mutilate.
SCE-327: Need to wait until memcached works before start mutilate.

Laucher needs to wait for memcached to be operational. Without it
sometimes memcached is not running while mutilate tries to connect and
error occurs.
This is quick fix. We need better solution for it (including remote
executor)

Signed-off-by: Maciej Patelczyk <dab3e64c9b6ff7dce28693076765b4373d8dfee7@intel.com>

intelsdi-x/swan,intelsdi-x/swan,intelsdi-x/swan