test: fix import path

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
test: check numeric osd id

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
test: check for any stat change

The memstore doesn't seem to refresh kb_used, so we wait for anything to
change. It looks like num_objects changes for memstore.

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
test: add micro-osd script for travis-ci build

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
test: use micro-osd script to setup ci build

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>