bug #3521 : Every usage of a wysiwyg MUST use a language
Better usage of the language when creating a wysiwyg in kmelia

Conflicts:

	kmelia/kmelia-ejb/src/main/java/com/stratelia/webactiv/kmelia/control/ejb/KmeliaBmEJB.java
	kmelia/kmelia-war/src/main/java/com/stratelia/webactiv/kmelia/control/KmeliaSessionController.java
	kmelia/kmelia-war/src/main/java/com/stratelia/webactiv/kmelia/servlets/KmeliaRequestRouter.java
	rssaggregator/rssaggregator-jar/pom.xml
integrating fix of bug #3521