Ajout du hashage des mots de passe dans Acegi

Correction en conséquence de SessionService
Ajout d'une vérification de duplication d'email dans UserRegister

YACOSWeb/WebContent/WEB-INF/applicationContextAcegi.xml

@@ -42,12 +42,6 @@ http://www.springframework.org/schema/beans http://www.springframework.org/schem
   <property name="providers">
     <list>
       <ref local="daoAuthenticationProvider"/>
-      <bean class="org.acegisecurity.providers.anonymous.AnonymousAuthenticationProvider">
-        <property name="key" value="changeThis"/>
-      </bean>
-      <bean class="org.acegisecurity.providers.rememberme.RememberMeAuthenticationProvider">
-        <property name="key" value="changeThis"/>
-      </bean>
     </list>
   </property>
 </bean>
@@ -66,6 +60,12 @@ http://www.springframework.org/schema/beans http://www.springframework.org/schem
       </property>
     </bean>
   </property>
+  <property name="passwordEncoder" ref="passwordEncoder"/>
+</bean>
+
+<bean id="passwordEncoder" 
+		class="org.acegisecurity.providers.encoding.ShaPasswordEncoder">
+	<constructor-arg value="256"/>
 </bean>
 
 <bean id="userDetailsService" class="org.yacos.auth.UserDetailsService">