Collective-eeafaceted-batchactions

----------------

- Some changes to made it working with a simple z3c.table.
[sgeulette]

------------------

- Fixed english po file.
[gbastien]

----------------

- Added `collective_eeafaceted_batchactions_js_variables.js` that allows to
translate the `no_selected_items` message.
[gbastien]

----------------

- Renamed `BatchActionForm` to `BaseBatchActionForm` to show that it is the base
form to inherit from to build new batch action. Make it inherit from
`Form` instead `EditForm`.
[gbastien]
- Refactored the way form is updated and applied : two methods are there to be
overrided : `_update` that is called in the `update` process and `_apply` that
is called by `handleApply`. This way it is easy to build an new action
without having to think about basic default behavior.
[gbastien]
- In the `TransitionBatchActionForm`, sort selectable transitions alphabetically.
[gbastien]

----------------

- Use `getMultiAdapter` instead `restrictedTraverse` when getting the form
in the viewlet to speed up things.
[gbastien]
- Added attribute `button_with_icon` to a batch action, if set to True,
a particular CSS class is added to the button so it can be skinned
with an icon easily.
[gbastien]
- Register a `batch_actions.css` resource for basic styling.
[gbastien]

----------------

- Initial release.
[IMIO]