Flat taxonomy

This is a very basic module which provide a new option in vocabulary creation/edition form to enforce it to be flat.
As a developer, I faced some situation where the vocabulary was supposed to be flat and development have been done based on that assumption. Later, a contributor creates a new term using the parent field (hierarchical vocabulary). It causes issue on the front-end or at least it is confusing for the contributor.
This module should avoid the situation by removing the possibility to create nested terms.

• Alter the term creation/edition for to be sure it is impossible to select a parent.
• Alter the term overview page to be sure it is impossible to create a nested vocabulary.

The Drupal 7 version of the module has some additional features:

• Drush integration to flatten a vocabulary
• Confirmation step on vocabulary edition form if the form is flagged to be flatten but contains nested terms.

Any new feature to be added to the module is welcomed ;-)