fix init.d script and other stuff

[darealshinji]

This pull request has less changes then #13

This will update the Debian files to the new debhelper format and it'll fix the following Lintian tags:

E: mintsystem source: source-contains-unsafe-symlink usr/bin/rtfm
W: mintsystem source: debian-rules-missing-recommended-target build-indep
W: mintsystem source: debian-rules-missing-recommended-target build-arch
W: mintsystem source: binary-arch-rules-but-pkg-is-arch-indep
W: mintsystem source: ancient-standards-version 3.7.2 (current is 3.9.5)
E: mintsystem: copyright-should-refer-to-common-license-file-for-gpl
W: mintsystem: copyright-without-copyright-notice
W: mintsystem: extended-description-line-too-long
E: mintsystem: file-in-usr-local usr/local/bin/mint-md5sum
W: mintsystem: file-in-unusual-dir usr/local/bin/mint-md5sum
E: mintsystem: prerm-calls-updaterc.d mintsystem
E: mintsystem: postrm-does-not-call-updaterc.d-for-init.d-script etc/init.d/mintsystem
E: mintsystem: init.d-script-does-not-implement-required-option etc/init.d/mintsystem start
E: mintsystem: init.d-script-does-not-implement-required-option etc/init.d/mintsystem stop
E: mintsystem: init.d-script-does-not-implement-required-option etc/init.d/mintsystem restart
E: mintsystem: init.d-script-does-not-implement-required-option etc/init.d/mintsystem force-reload
E: mintsystem: python-script-but-no-python-dep usr/lib/linuxmint/mintSystem/mint-adjust.py
E: mintsystem: python-script-but-no-python-dep usr/local/bin/apt
W: mintsystem: binary-without-manpage usr/bin/rtfm
W: mintsystem: executable-not-elf-or-script usr/local/bin/mint-md5sum
W: mintsystem: init.d-script-does-not-source-init-functions etc/init.d/mintsystem

The remaining files in /usr/local/bin should be moved to /usr/bin or to a different location outside of /usr/local and installed to /usr/local/bin via update-alternatives. But for this pull request I kept them where they are. Same for the stuff in /usr/lib.

[darealshinji]

This line can be removed, when there are no more files in /usr/local

[monsta]

About including /lib/lsb/init-functions - what does that fix actually?

[darealshinji]

https://lintian.debian.org/tags/init.d-script-does-not-source-init-functions.html

[monsta]

No, I mean what errors or bugs does it fix?

[darealshinji]

It fixes the init.d-script-does-not-source-init-functions warning in Lintian. If you think sourcing init-functions is pointless or might even break things, it should be removed and the Lintian tag should be overridden.
The main "fix" is actually that the script now supports the start|stop|status|restart|force-reload options.

[monsta]

I just thought it might help with fixing the ordering cycle issue, but turns out it's not... I've eventually fixed it another way (#16). Nevermind then.

[darealshinji]

I made new and smaller pull requests.