Support for systemd and fixed issue with SysV using environment variables

[cliffpracht]

No description provided.

[realityforge]

Eyeballing it looks fine. Will try and get it tested and merged in soon. Sorry for taking a while to respond ... have a small baby and my time is getting soaked up there ;)

[cliffpracht]

Cool.. Thanks @realityforge. Hear you on the baby thing - got a 1 and 3 at home, as well. Enjoy it!

[cliffpracht]

Noticed an issue with the systemd syntax, which should be fixed now. Environment should look like this:

Environment="LC_ALL=en_US.UTF-8"
Environment="LD_LIBRARY_PATH=/path/to/lib"
Environment="LD_PRELOAD=/path/to/lib/libjsig.so"

Not this:

Environment="LC_ALL=en_US.UTF-8 LD_LIBRARY_PATH=/path/to/lib LD_PRELOAD=/path/to/lib/libjsig.so"

[realityforge]

Thanks - finally got to merging it.