.openshift directory
openshift setup is working
Merge remote-tracking branch 'origin/master' into openshift2

Conflicts:
	bin/setup_heroku
fix spec
do not depend on .env.example any more
Merge branch 'master' into openshift2

Conflicts:
	bin/setup_heroku
fix heroku
clarify openshift
Merge pull request #566 from cantino/openshift2

OpenShift deployment
Enable AgentLog to handle a message with invalid byte sequences.

Use `String#scrub` which is new in Ruby 2.1 and add the `string-scrub`
gem for older rubies.

Addresses #286 and #613.
Add a magic comment for Ruby 1.9.
Merge pull request #616 from knu/scrub_log_message

Enable AgentLog to handle a message with invalid byte sequences.
Fix markdown markups.  Text styles do not work in `...`.
Upgrade Rails to 4.1.7, which comes with security fixes.
Upgrade nokogiri to 1.6.4, which comes with security fixes.
Upgrade slack-notifier to 1.0.0; use webhook URLs instead of tokens.

Slack's service integration instructions now only show Webhook URL, so
this should be reasonable for new users.

For compatibility, allow an existing pair of `team_name` and
`auth_token` to still work.
Merge pull request #617 from knu/upgrade_slack-notifier

Upgrade slack-notifier to 1.0.0; use webhook URLs instead of tokens.