Fix lintian issues #1641
Description
I just randomly ran the latest deb package through lintian and came up with the following violations:
root@dokku:~# lintian dokku_0.4.3_amd64.deb
warning: the authors of lintian do not recommend running it with root privileges!
E: dokku: changelog-file-missing-in-native-package
W: dokku: control-file-is-empty conffiles
E: dokku: no-copyright-file
W: dokku: malformed-prompt-in-templates dokku/hostname
W: dokku: malformed-prompt-in-templates dokku/key_file
W: dokku: postrm-does-not-purge-debconf
W: dokku: missing-debconf-dependency-for-preinst
E: dokku: extended-description-is-empty
W: dokku: unknown-section base
E: dokku: dir-in-usr-local usr/local/bin/
E: dokku: file-in-usr-local usr/local/bin/dokku
W: dokku: file-in-unusual-dir usr/local/bin/dokku
E: dokku: dir-in-usr-local usr/local/share/
E: dokku: dir-in-usr-local usr/local/share/dokku/
E: dokku: dir-in-usr-local usr/local/share/dokku/contrib/
E: dokku: file-in-usr-local usr/local/share/dokku/contrib/dokku-installer.rb
W: dokku: file-in-unusual-dir usr/local/share/dokku/contrib/dokku-installer.rb
E: dokku: dir-in-usr-local usr/local/share/man/
E: dokku: dir-in-usr-local usr/local/share/man/man1/
E: dokku: file-in-usr-local usr/local/share/man/man1/dokku.1
W: dokku: file-in-unusual-dir usr/local/share/man/man1/dokku.1
W: dokku: script-not-executable var/lib/dokku/core-plugins/available/config/functions
Would be great to fix as many of these as possible so that we can be good packaging citizens :)