bump default monit version to 5.8
Use debian provider service when on a deb platform
Minor version bump

As these changes should not be breaking
Configure a sysvinit script instead of upstart...

… when on a debian platform
Test for installation on Debian...

…using sysvinit scripts
Add Debian to list of supported platforms in metadata
after further thought, I realise this version should be a minor, not a patch.