debian sysvinit script

This is the custom initscript I use on my box,
this shouldn't affect ubuntu using the upstart script I think, but please build-test before merge as I have no Ubuntu to test on right now.

Then I saw these lintian warnings and tried fixing them:
```sh
W: scrapyd: copyright-refers-to-deprecated-bsd-license-file
P: scrapyd: copyright-with-old-dh-make-debian-copyright
E: scrapyd: description-starts-with-package-name
I: scrapyd: extended-description-is-probably-too-short
I: scrapyd: init.d-script-missing-lsb-description etc/init.d/scrapyd
E: scrapyd: init.d-script-missing-dependency-on-remote_fs etc/init.d/scrapyd: required-start
E: scrapyd: init.d-script-missing-dependency-on-remote_fs etc/init.d/scrapyd: required-stop
I: scrapyd: unused-override new-package-should-close-itp-bug
W: scrapyd-deploy: copyright-refers-to-deprecated-bsd-license-file
P: scrapyd-deploy: copyright-with-old-dh-make-debian-copyright
I: scrapyd-deploy: extended-description-is-probably-too-short
```
Not fixed are:
```sh
W: scrapyd-deploy: binary-without-manpage usr/bin/scrapyd-deploy
W: scrapyd: binary-without-manpage usr/bin/scrapyd
```