Category Template Hierarchy

Adds several new templates to the template hierarchy:

• child-of-category-{slug}.php
• category-{slug}.php
• child-of-category-{id}.php
• category-{term_id}.php
• parent-category.php
• child-category.php
• category.php
• archive.php
• index.php

This greatly extends the native hierarchy of theme templates with regard to
categories. Theme developers can now easily create separate templates for
categories with children, with parents, and children of specific parents.

Additionally makes available four (4) new conditional template tags:

• is_child_category();
• is_parent_category();
• is_child_of_category();
• is_parent_of_category();

These functions are available for use in any theme or plugin as along as this
plugin is active. For detailed documentation of these functions see the
‘Developer Notes: Condition…