Current editions selection list display position
We need to choose where the current edition list is displayed in the Edition form.
Currently:
- in the TXM portal, the edition list is shown to the left.
- the SynopticEditor mimic this behavior.
But we can also show the edition list next to edition selector button
(from redmine: issue id 899, created on 2014/07/02 by Matthieu Decorde)