on feature #5515, improving portlet to display news progressively
on feature #5515, some improvements :
- removing drafts that have never been saved by contributor
- checking title length
- fixing label of parameters relative to thumbnail
fixing bug #6083 : using right conversion method
Fixing a wrong behavior on the news creation.
Using new volatile cache of resources services.
Merge branch 'ney-bugs-aroundQuickinfo' into components-5.15.x