Do not install gem via sudo
Bump up the version
Do not install gem as root if rvm/rbenv ruby is enable
Improve output
Bump up version to 0.0.9
Remove exit in run.sh
Bump up version to 0.1.0
Merge branch 'master' of https://github.com/wantedly/step-pretty-slack-notify into merge-upstream

* 'master' of https://github.com/wantedly/step-pretty-slack-notify:
  Bump up version to 0.1.0
  Remove exit in run.sh
  Bump up version to 0.0.9
  Improve output
  Do not install gem as root if rvm/rbenv ruby is enable
  Bump up the version
  Do not install gem via sudo

Conflicts:
	wercker-step.yml
Merge pull request #1 from LoveMondays/merge-upstream

Merge upstream changes