Support Short Names

Some doctypes have names that are unwieldy in the context of the doctype. For instance the name of a category contains the full path to the root of the category. In the context of the parent category we would like to refer to the category by its short name, sufficiently unique within its siblings (as defined by the category doctype).

We may later expand this feature with defaults between the name and the short description. For now we only need to introduce the concept by its unique key and translations.