VBO Sortable

The Views Bulk Operations are quite usefull in many contexts but sometimes the actions don't appear in a logical order.
For example, in a list of users, it might appear first delete, unlock, lock, or any other.

In order to improve user experience, we will allow the user to display the actions using the it's own criteria.

Based on Drupal Form API weights, when the module is enabled, it will appear next to each action of the VBO a weight select box. The weight selected will indicate the order from low to high.