mamiya v0.1.1

= Bug fixes

- When `mamiya client status` (application) try to sho agent name list, but
  server name is shown as empty string :speech_balloon:
- `mamiya client deploy` command might ignore unparticipants agent :fearful:
  - unparticipants agent might be untouched on deploy
- wording fixes :memo:

= Others

- now using aws-sdk-core.gem>=2.0.0 (was =2.0.0.rc15) :point_up:
  - congrats AWS team for releasing stable version! :tada:

Since we're using this on production,
I'm planning to release this as 1.0.0 later, unless any problem found.