Merge branch 'dev'
Merge branch 'dev'
Merge branch 'dev'
Modify www6308ui.sakura.ne.jp.json to install nagios.
Merge branch 'nodes'
Install python-demjson package in order to test the json format validity.

  This fixes #36.
Check the json file format validity when testing.

  Chef solo fails often because the json file format is invalid.
  Before commiting, check the json file format validity.

  This commit fixes #39.
Output the logs regarding Redmine to /var/log/redmine.access.log.

  This commit enables the log analysis easy,
  because the logs about Redmine is output to the /var/log/redmine.access.log.

  (Currently all the nginx logs is output to the /var/log/access.log)

  This commit fixes #14.
Merge branch 'id/14' into dev