Resolution #178: fix Jenkins failed tests
Resolution #178: BUGFIX perf avoid unnecessary (un)boxing
Resolution #178: handle third (null) value of Boolean
Resolution #178: dont handle third (null) value of Boolean
Resolution #178: Split/Encapsulate concern
Resolution #178: wipe old unused method, cleaning code
Resolution #178: refactor/functionalize the liste preparatoire csv generator
Resolution #178: update IHM to show email warning, prepare ajax call
Resolution #178: Add messages div to page

Avoid JSF exception : There are some unhandled FacesMessages, this means not every FacesMessage had a chance to be rendered
Fixes #178: update IHM, add async call to new entrypoint
[maven-release-plugin] prepare release 2.0.0-beta4-pre58