Fix bug when run_context is nil
Merge branch 'tduffield/rel-0.3.1'
Add remove_secure option

By default, the contents of the secure directory will be flushed at the end of the bootstrap. By specifying --no-remove-secure, that step will be skipped
Update CHANGELOG
Merge branch 'tduffield/FSE-188' into tduffield/rel-1.0.0.rc.0

Conflicts:
	CHANGELOG.md
	lib/chef-init/version.rb