baseimage: rename /opt/init-wrapper/scripts to /opt/init-wrapper/pre-init.d
baseimage: run /opt/init-wrapper/post-init.d/* in /etc/rc.local
baseimage: refactoring
baseimage: delete opt/init-wrapper/post-init.d/01-apt
Merge pull request #3 from minimum2scp/feature/support-rc-local

support /etc/rc.local scripts