Canonical paths

[boyska]

Installing libreant is simple, but lot of details are not standardized. If we want to go towards easier installation, one of the things to do is suggesting sane values for data and settings.
This way it is easy to create scripts, packages, and any other provisioning method that are "compatible" between them.

Here is a list of things to decide upon:

• fsdb directory
• users db path
• LIBREANT_SETTINGS
• PRESET_PATHS

[boyska]

fsdb is hard for me to decide: by its nature, having a single /var/lib/fsdb to be used by multiple applications seems nice. However, this would make the removal of unreferenced files virtually impossible. So maybe /var/lib/libreant/fsdb/ is a better guess.

users db could just go in /var/lib/libreant/users.sqlite

LIBREANT_SETTING should be /etc/libreant.json. But since we might have other configuration files, /etc/libreant/libreant.json may be better

PRESET_PATHS should be /etc/libreant/presets/. If we want to have default presets, we might just ship them in /usr/share/libreant/default/presets/ and suggest the user to add that directory to PRESET_PATHS. If the distribution want to ship default presets, it might just put files under /etc/libreant/presets/ (similarly to apache2 configuration on debian, for example)