EW-7 - [Etude] Carrousels
POC
Merge branch 'master' of https://github.com/productys/eworkshop-poc

Conflicts:
	src/com/productys/poc/EworkshopApplicationPoc.java
	src/com/productys/poc/widgetset/EworkshopPocWidgetset.gwt.xml
Nettoyage et correction de certains pocs