added actions for :

- liste messages
- envoyer message
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/main/java/org/arQam/AnnonceEfficace/Action/DetailsAnnonceAction.java
	src/main/webapp/detailsAnnonce.jsp
	target/classes/org/arQam/AnnonceEfficace/Action/DetailsAnnonceAction.class
	target/work/jsp/org/apache/jsp/header_jsp.class