I18N test failing

Refactor tree to ID/name conversions

Use Tree object instead of ID/name

Create test harnesses for modules

PSR-1

Fix #456

Tidy SQL

PHPUnit

Fix scrutinizer warnings in family book controller

Generating XREFs is the responsibility of the tree

No longer need to update globals, as records contain their own privacy settings

Namespaces should consist of both vendor and package

Namespaces

Autoload includes/functions/*

Refactor batch-update classes to use PSR4 autoloading

Refactor classes to use namespaces, as per PSR-4. Replace GPL2 with GPL3.