- [!] complete commit 8ae0d57, not only move all files down from /etc/ to /etc/dbab in the installation, but in sources as well
- [!] add missing dhcp-add-wpad
Revert simplifying /etc/init.d/dbab because that depends on init-system-helpers
 >= 1.18~, however neither Debian Wheezy nor Ubuntu Trusty (14.04LTS)
 support that (at least by default). Revert for backword compatibility.

This reverts commit 4d537ab7d8ba922ccf804da542f8109b95f4fed9, reversing
changes made to 78fae581e66c2baff5fe569c39982276454cee91.