Initial general guide for bundles
Add introduction to all chapters
Add events chapter to general guide
Extend the settings bundle docuementation
Tweak settings bundle documentation
Initial taxation and shipping docs
Introduce User Guide concept, add basic installation instruction
Initial draft of addressing docs
Merge branch 'addressing-bundle' into docs-reborn
Rewrite and reorganize the taxonomies bundle doc
Merge branch 'taxonomies' into docs-reborn
Add VariableProductBundle, little clean up
Update cart and sales bundle docs