Feature information pop-up : adding information pop-up into Silverpeas pop-up JQuery plugin (width OK button).
Modifying also of an error on LogoutServlet.java
Merge branch 'feature-popup-info' of https://github.com/SilverYoCha/Silverpeas-Core into ych-popupInformation
integrating new type of popup message : information
adding a JSP page to demonstrate available types of popup message