first big step of feature #5397
Merging branch of feature #5397 into feature #5515

Conflicts:
	war-core/src/main/webapp/admin/jsp/TopBarSilverpeasV5.jsp
	web-core/src/main/java/com/stratelia/webactiv/util/viewGenerator/html/IncludeJSPluginTag.java
	web-core/src/main/java/com/stratelia/webactiv/util/viewGenerator/html/JavascriptPluginInclusion.java
	web-core/src/main/java/com/stratelia/webactiv/util/viewGenerator/html/SupportedJavaScriptPlugins.java
feature #5397 : ticker is done and desktop notifications works with Chrome and Firefox
feature #5515 : fixing 'quickinfo' portlet
feature #5515 : fixing PublicationDetail.java to manage correctly Period with hours
feature #5515 : adding full support of 'blocking' news after user authentication
adding new mechanism which allow components to hook on authentication
adding new method to know if a user have read a content : StatisticBm#isRead