GitLab

Make non essential file generation conditional instead of generating blank files where there are no vars

add service start to systemd

Added Shorewall version check, specifically for rules to (not) include a questionmark for sections (Ubuntu 14.04 LTS)

it's a dict

* Wrapped config in block, to allow for "absent" package state

* Converted config to be entirely key-value based;
* Moved (incompatible) package list to vars;
* Default vars autodetect def interface name;
* Minor cosmetic changes;