Server startup scripts fail on Ubuntu 15.10

[destijl]

There have been a few reports of problems with startup scripts on Ubuntu 15.10:

#332 (comment)
google/grr-doc#36

This is unsurprising since we don't support systemd yet. I have added a note to the quickstart docs to warn people. For now you should use 14.04, and we'll fix this in the next server release which is coming in the next few weeks.

[destijl]

We need to support 16.04 LTS before we go to full release.

[destijl]

As announced on the list we're moving completely to systemd:

FYI I'm working on changes for deb packaging the 3.1.0 release. We need to support systemd since it's won the init wars at this point.

Removing upstart and moving to systemd significantly simplifies things in a number of ways, but dropping upstart support means that installing the new version via deb package will require an upgrade from ubuntu trusty, which was our previous baseline. The new baseline will be ubuntu xenial LTS.

I just wanted to give some advance notice that this is coming. You'll still be able to install via pip on pretty much any platform, but you'll have to set up init/upstart yourself.