Create a tool which clone and setup containers.

We (me and @Mnakagawa) created a tool which clone and setup containers.

- common
  - definevalue.py: Constant values are defined in the file.
  - utils.py: Utility functions are defined in the file.
- clone_config
  - clone.py: Clones containers from config file.
  - setup.py: Set up containers from config file
  - clone_test.py: Check the result of clone.py.
  - setup_test.py: Check the result of setup.py
  - zabbix.py: Utility functions about Zabbix API are defined in the file.
  - start_clone_setup.py: Run clone.py and setup.py process at once.
  - sample.py: Sample config file.
  - assets directory: Needed files in the each containers.

Other, bug fixes in other directory are included in this pull request.