Prefer identityfile to password
Make user calls for Net::SSH consistent
Add sudo to chef-solo automator
Add sudo to shell automator
Fix bad variable
Add CHANGELOG
Merge remote-tracking branch 'origin/develop' into feature/allow-non-root-bootstrap

Conflicts:
	CHANGELOG.md
Merge pull request #320 from continuuity/feature/allow-non-root-bootstrap

Feature/allow non root bootstrap