DEV-57 | Change README, remove teracy workspace description
DEV-57 | Rename teracy -> upstream
DEV-63 | Change open method file with path
Merge remote-tracking branch 'vinhtran/Bug/63-failed-to-vagrant-up-at-child-directory-of-teracy-dev' into develop
Merge remote-tracking branch 'vinhtran/Improvement/57-Update-workspace-layout' into develop
DEV-62 | Change config format in JSON and code in Vagrant
DEV-62 | Change chef.json config
DEV-62 | Upstream